Search results

Protect sensitive healthcare data with Algosec’s tailored network security solutions, ensuring compliance and risk reduction. Empowering secure connectivity for healthcare Yes, AlgoSec supports continuous compliance monitoring. As organizations adapt their security policies to meet emerging threats and address new vulnerabilities, they must constantly verify these changes against the compliance frameworks they subscribe to. Can AlgoSec be used for continuous compliance monitoring? Select a size Which network Get the latest insights from the experts AlgoSec and Zero-Trust for Healthcare Read more What are HIPAA network compliance requirements, rules, and violations? Read more Checking the cybersecurity pulse of medical devices Read more Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

The AlgoSec technology partner ecosystem Download PDF Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Enhancing Zero Trust Network Security Download PDF Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Assessing the Value of Network Segmentation from a Business Application Perspective Download PDF Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

AWS best practices WhitePaper Download PDF Schedule time with one of our experts Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

NAT Network Security I came across some discussions regarding Network Address Translation (NAT) and its impact on security and the... Firewall Change Management To NAT or not to NAT – It’s not really a question Prof. Avishai Wool 2 min read Prof. Avishai Wool Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 11/26/13 Published NAT Network Security I came across some discussions regarding Network Address Translation (NAT) and its impact on security and the network. Specifically the premise that “ NAT does not add any real security to a network while it breaks almost any good concepts of a structured network design ” is what I’d like to address. When it comes to security, yes, NAT is a very poor protection mechanism and can be circumvented in many ways. It causes headaches to network administrators. So now that we’ve quickly summarized all that’s bad about NAT, let’s address the realization that most organizations use NAT because they HAVE to, not because it’s so wonderful. The alternative to using NAT has a prohibitive cost and is possibly impossible. To dig into what I mean, let’s walk through the following scenario… Imagine you have N devices in your network that need an IP address (every computer, printer, tablet, smartphone, IP phone, etc. that belongs to your organization and its guests). Without NAT you would have to purchase N routable IP addresses from your ISP. The costs would skyrocket! At AlgoSec we run a 120+ employee company in numerous countries around the globe. We probably use 1000 IP addresses. We pay for maybe 3 routable IP addresses and NAT away the rest. Without NAT the operational cost of our IP infrastructure would go up by a factor of x300. NAT Security With regards to NAT’s impact on security, just because NAT is no replacement for a proper firewall doesn’t mean it’s useless. Locking your front door also provides very low-grade security – people still do it, since it’s a lot better than not locking your front door. Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call

Explore Algosec's customer success stories to see how organizations worldwide improve security, compliance, and efficiency with our solutions. BM&FBOVESPA Invests In Security Policy Management To Improve Operational Efficiencies Organization BM&FBOVESPA Industry Financial Services Headquarters Sao Paulo, Brazil Download case study Share Customer
success stories "AlgoSec helps us maintain a problem-free environment. And because of operational efficiencies, the product paid for itself within the first year. With AlgoSec, we can do more with less" Leading Latin American Stock Exchange Maintains a Secure, Compliant Trading Environment AlgoSec Business Impact • Recouped investment in AlgoSec within the first year• Reduce rule review project from 1 month to 1 day• Helps maintain a secure, compliant environment• Frees up staff to focus on other crucial security tasks Background Headquartered in Sao Paulo, Brazil, BM&FBOVESPA is the largest stock exchange in Latin America. BM&FBOVESPA has a diversified and integrated trading model offering a complete custody system. Trading takes place in an exclusively electronic environment. The Exchange enables customers to trade equities, to hedge and to execute arbitrage, investment diversification, allocation and the leveraging of positions. Challenge To keep its systems and transactions secure, BM&FBOVESPA utilizes firewalls from several vendors. In total these firewalls have about 40,000 firewall rules, with another 5,000 added annually. Even with two full-time employeesfocused on maintaining firewall rules, the steady addition of rules and objects created clutter and consumed the firewall appliances’ CPU and memory. Therefore, BM&FBOVESPA realized that an automated solution for firewall policy management was the natural next step in the maturity of its information security processes. “Manually managing our firewall policies was difficultand time consuming. We needed a solution that supported a variety of different firewall vendors and could integrate and manage all policies in an automated manner,” said Wellington Vita, Information Security Manager of BM&FBOVESPA. Solution Following a recommendation from Compugraf, one of BM&FBOVESPA’s key security partners, Vita and his team evaluated AlgoSec’s Security Management solution. The proof of concept clearly showed the value of the solution and the ease and speed with which it could be deployed. The ability to integrate and manage devices from multiple vendors and provide visibility across the entire network was also important in BM&FBOVESPA’s decision to select AlgoSec. Results BM&FBOVESPA uses AlgoSec on a daily basis to manage its firewall policies. “AlgoSec is a great product which helps us maintain the core of our environment -the firewall policy. With AlgoSec we can easily identify unused rules and objects, as well as rules that were not compliant with our information security policy.” noted Vita. “While using AlgoSec, we also discovered a new benefit. AlgoSec enables our information security architects to understand how information flows between firewalls, which helps them significantly with their information security projects.” The gains in efficiency and productivity have dramatically reduced the time consumed by firewall policy management. “Because of operational efficiencies AlgoSec paid for itself in the first year,” said Vita. In addition to cutting the time needed to perform ongoing policy management, the solution enabled BM&FBOVESPA to meet deadlines that would previously have been unachievable. “A month ago, we had to review our incoming internet access rules in two days — and did. Without AlgoSec, it would have taken us at least a month to accomplish this task,” added Vita.“AlgoSec helps us maintain a problem-free environment. And we have been able to move members of our team who previously handled these maintenance jobs onto other tasks, so we can do more with less. I recommend AlgoSec to other companies — it will help them improve their firewall policy management processes,” concluded Vita. Schedule time with one of our experts

Understand HIPAA network compliance requirements. Learn how to safeguard patient data with robust network security measures and ensure compliance with HIPAA regulations. HIPAA network compliance & security requirements explained What are HIPAA network compliance requirements, rules, and violations? The advancement in data management technology has revolutionized how healthcare providers offer their services. Digital or electronic solutions are integrated into healthcare processes to improve productivity, enhance efficiency, and meet patients’ demands. Before digital transformation swept across the healthcare industry, healthcare providers at all levels relied upon manual methods and traditional data processing to carry out their day-to-day activities. Today, modern solutions, like computerized physician order entry (CPOE) and electronic health records (EHR), have replaced them, streamlining repetitive tasks, encouraging collaboration, and improving data sharing. Even though using computerized systems and other medical record management systems is very helpful, the security of confidential healthcare information has been a major challenge. To ensure that the privacy and security of patients’ information are maintained, the government created a law to enforce compliance (by organizations) with security best practices. This is where HIPAA comes in! Schedule a Demo What is HIPAA compliance? This refers to compliance with regulatory standards that outline what organizations that handle protected health information (PHI) must do to ensure the privacy and security of patients’ data. The U.S. Health Insurance Portability and Accountability Act (HIPAA) requires healthcare providers and their business associates to implement physical, network, and process security measures to ensure the security of PHI. HIPAA regulations set clear standards that health organizations must meet when managing patients’ sensitive data, like patient medical records, health insurance information, and other personally identifiable information. Schedule a Demo Who needs to be HIPAA-compliant? According to the HIPAA, the Privacy Rule covers: Health plans Health care clearinghouses Healthcare providers who execute certain financial and administrative transactions electronically. Schedule a Demo What are HIPAA compliance requirements? There are some measures organizations are required to implement to protect patients’ sensitive data. If your company is a “covered entity”, it is expected to meet the following compliance requirements: 1. Have a dedicated HIPAA privacy officer There is a need for a professional who understands HIPAA and how to comply with the regulations. The officer will guide your organization on the right path and implement necessary measures to avoid HIPAA violations. And when a data breach or violation happens, the officer should restore order following the provisions of the act. 2. Identify and classify sensitive data Does your organization manage data that is not subject to HIPAA regulations? If that is the case, identify and classify sensitive information that should be handled according to HIPAA requirements. This helps you to implement security measures with little or no ambiguity. 3. Staff training Malicious actors usually target employees of organizations they want to attack. To equip your staff with the ability to spot attacks from a distance, you need to institute staff training. Your employees need to learn how to implement physical, administrative, and technical safeguards to protect PHI. 4. Institute strict data management policies Getting your staff trained on HIPAA laws and regulations is not enough. They need good leadership to uphold data security standards. Establish data management policies to enforce best practices and regulate access privileges. 5. Equip your facilities with security solutions Access control is a significant part of HIPAA compliance. Ensure unauthorized users don’t have access to computers, documents, or sensitive parts of workstations. You can achieve this by implementing security measures that regulate access to data and notify you when someone trespasses. 6. Install encryption software where necessary Data encryption solutions make files inaccessible to cybercriminals. Cloud solutions and other digital methods of storing data have increased the surface area for attacks. Malicious cyber actors are relentlessly scouring the internet for security vulnerabilities. Safeguarding patients’ data with encryption software is the way to go. 7. Enforce common best practices Visiting a malware-compromised website or clicking an ‘infected’ link can make your organization prone to a security breach. Encourage safe browsing and adopt security solutions, like email security software and antivirus systems. 8. File disposal policy Don’t dispose of documents or storage devices without rendering them unreadable. The best way to dispose of documents and records is to destroy them – by shredding or burning them. 9. Establish procedures for handling data breaches The primary goal is to prevent a security breach. However, the undesirable happens, and you need to be ready for the worst-case scenario. Establish and maintain procedures for managing security challenges. Ensure you appoint well-trained security experts who can respond swiftly when a breach occurs. 10. Monitor & review your assets & procedures regularly Keep an eye on your data assets and management policies. This helps you to identify inefficiencies and adopt measures to plug loopholes. Regular review is necessary to ensure you are keeping up with best practices. Remove outdated solutions and procedures to stay a thousand steps ahead of criminals. 11. Implement a strict backup policy Implement a backup strategy that conforms with the dictates of HIPAA. That said, having a good backup policy helps you clean up a data breach quickly. The general backup best practice is to have three copies of data at three different premises – on-site, off-site, and cloud locations. 12. Establish and maintain a disaster recovery plan A disaster recovery plan outlines how your organization will restore operations and manage stakeholders after a security breach. It details how your security team will respond to emergencies or the aftermath of security problems. Remember, your disaster recovery system should comply with the provisions of HIPAA. Schedule a Demo What are the four main HIPAA rules? The major HIPAA rules are the Privacy Rule , Security Rule , Breach Notification Rule , and Omnibus Rule . Let’s take a look at each rule. The HIPAA privacy rule The HIPAA Privacy Rule is a regulatory framework that mandates covered entities and their business associates to uphold patients’ rights to data privacy. The privacy rule states what constitutes electronically protected health information, how it should be safeguarded, and the DOs and DON’Ts of PHI management. In a nutshell, this rule establishes how patients’ sensitive information should be protected, stored, used, shared, and disclosed. Any identifiable patient data is subject to the Privacy Rule. The PHI includes: Any past, present or future documentation on physical or mental conditions Healthcare records of the patient Records showing past, present, or future healthcare payment information According to the Privacy Rule , covered entities and their business associates are responsible for protecting PHI. There are cases where organizations can disclose private health information. But such scenarios are strictly defined by the rule and subject to legal interpretation. The HIPAA security rule While the Privacy Rule defines what privacy and ePHI (electronic PHI) are, the Security Rule is a framework that outlines the standards required to ensure the security of electronically protected health information. The security rule covers every aspect of your organization’s operations, from administration and physical processes to computers and technology equipment. The security rule has five sections: general rules, administrative safeguards, physical safeguards, technical safeguards, and organizational requirements. The General Rules The General rules mandate organizations to: Protect ePHI from reasonably anticipated threats or hazards Prevent any reasonably anticipated uses or disclosures of PHI that are not in line with the provisions of the Privacy Rule Enforce compliance with the security rule by the employees The Administrative Safeguards The Administrative Safeguards require the implementation of security policies and procedures. It dictates that the Security Officer should be responsible for conducting risk analyses, staff training, adopting risks and vulnerability management measures, and other administrative measures. The Physical Safeguards The physical safeguards outline how physical access to ePHI should be regulated. Whether the ePHI is stored in the cloud, in a remote data center, or on on-premise servers, there should be a strict policy that regulates access. This section of the security rule also states how access to workstations and devices should be safeguarded. The Technical Safeguards This part of the security rules focuses on ensuring that every person accessing ePHI is legitimate and does exactly what they are supposed to do. The technical safeguards help to ensure that security challenges are identified and rectified timely. The safeguards cover access controls, audit controls, integrity controls, transmission security, and any person or entity authentication. Organizational Requirements This section states the things business associate agreements must cover. Organizational Requirements stipulate that: Business associate agreements must provide that the business associates comply with the relevant parts of the security rule. Business associates must ensure compliance with subcontractors by entering into an Agreement with them. Business associates will report any security breach to the concerned covered entity. The HIPAA breach notification rule As much as organizations strive to comply with the requirements of HIPAA, security breaches still happen. It’s difficult, if not impossible, for covered entities and business associates to protect data with 100% effectiveness. Organizations must notify the public and the data subjects about a breach and disclose the steps they are taking to contain the problem. The Breach Notification Rule outlines what covered entities need to do when a breach occurs. Organizations are required to: Notify the people affected by the breach Inform the affected people within 60 days of the discovery of the security incident Provide a public notice if more than 500 individuals are impacted And more! The HIPAA omnibus rule According to the Omnibus Rule, organizations outside of covered entities (business associates and contractors) must meet compliance obligations. This rule states that covered entities are responsible for ensuring that business associates and contractors are compliant. Consequently, covered entities have to implement compliance measures to avoid any violations. Schedule a Demo What are HIPAA violations and how to avoid them? Violation is said to have occurred when an organization fails to comply with or meet the requirements of HIPAA. There are two major categories of violations: civil and criminal violations. Civil violations are committed accidentally or without malicious intent. On the other hand, criminal violations are done with malicious intent. As expected, penalties for civil violations are less than that for criminal violations. Here are some examples of violations and tips on how to avoid them: Illegal exposure of patients’ data Disclosing patients’ data to unauthorized parties accidentally or on purpose violates HIPAA provisions. There is a guideline for disclosing sensitive healthcare information. When due process is not followed, a violation occurs. And the penalty for unlawful disclosure of medical records depends on a range of factors, including whether it’s a civil or criminal violation. To avoid this type of violation, implement strict administrative policies. Allow only a few well-trained administrators to have the privilege to access or disclose data. When data access is strictly regulated, you can easily prevent unauthorized access and keep tabs on data management. Failure to implement proper security best practices The HIPAA security rule outlines the security protocols covered entities are required to implement. Given the complexity of data protection today, it’s easy to leave important things undone. You can avoid this by appointing an experienced security officer. You should also set up a committee of security professionals responsible for ensuring the proper implementation of security protocols. Lack of a consistent training policy It takes consistent staff training to meet the requirements of HIPAA. Both old and new employees need to be trained from time to time on how to protect healthcare data. Make training an integral part of your administrative policy. Non-compliance to security regulations is mainly caused by people. No matter the type of access management or security risk mitigation software you implement, you need an informed workforce to ensure compliance. Lack of proper notification after a security breach The HIPAA breach notification rule states how healthcare service providers should notify affected data subjects and public officials after a security incident. Failure to do so accordingly results in HIPAA violation. To avoid this, appoint a HIPAA compliance officer to monitor compliance gaps and ensure that requirements are met at every point in time. In addition, your contingency plan or disaster recovery system should contain a guideline on how to notify impacted parties when things go wrong. Lack of measures to address existing compliance gaps Neglecting existing compliance gaps or not doing the needful to avoid potential security problems violates HIPAA. Healthcare organizations are expected to act proactively, leveraging risk assessment and risk management policy to protect PHI. To close compliance gaps, do the following: Establish a HIPAA compliance enforcement team and a compliance officer Keep all software updated Conduct HIPAA audits regularly Work with a health information technology and security company that offers HIPAA compliance services. Schedule a Demo How can your network become HIPAA compliant with AlgoSec? HIPAA compliance requirements can be challenging to meet. The requirements are many, and you need teams of dedicated experts to interpret and design compliance strategies. Managing in-house teams of compliance experts is capital-intensive and time-consuming. Therefore outsourcing compliance duties to a technology and security vendor is the way to go. AlgoSec provides comprehensive network security solutions you need for your organization to become HIPAA compliant. AlgoSec automatically identifies compliance gaps and provides remediation guidance. It also allows you to easily generate daily audit and compliance reporting across your entire network – whether the data is in the on-premise data center, in the private cloud or in the public cloud. Best of all, AlgoSec generates pre-populated, audit-ready compliance reports that help reduce HIPAA audit preparation efforts and costs. Contact us today to learn more about how we can help you comply with HIPAA provisions. Schedule a Demo Select a size What are HIPAA network compliance requirements, rules, and violations? What is HIPAA compliance? Who needs to be HIPAA-compliant? What are HIPAA compliance requirements? What are the four main HIPAA rules? What are HIPAA violations and how to avoid them? How can your network become HIPAA compliant with AlgoSec? Get the latest insights from the experts Use these six best practices to simplify compliance and risk mitigation with the AlgoSec platform White paper Learn how AlgoSec can help you pass PCI-DSS Audits and ensure continuous compliance Solution overview See how this customer improved compliance readiness and risk management with AlgoSec Case study Choose a better way to manage your network

Like all modern cloud providers, Amazon adopts the shared responsibility model for cloud security. Amazon guarantees secure... AWS NACL best practices: How to combine security groups with network ACLs effectively Prof. Avishai Wool 2 min read Prof. Avishai Wool Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 8/28/23 Published Like all modern cloud providers, Amazon adopts the shared responsibility model for cloud security. Amazon guarantees secure infrastructure for Amazon Web Services, while AWS users are responsible for maintaining secure configurations. That requires using multiple AWS services and tools to manage traffic. You’ll need to develop a set of inbound rules for incoming connections between your Amazon Virtual Private Cloud (VPC) and all of its Elastic Compute (EC2) instances and the rest of the Internet. You’ll also need to manage outbound traffic with a series of outbound rules. Your Amazon VPC provides you with several tools to do this. The two most important ones are security groups and Network Access Control Lists (NACLs). Security groups are stateful firewalls that secure inbound traffic for individual EC2 instances. Network ACLs are stateless firewalls that secure inbound and outbound traffic for VPC subnets. Managing AWS VPC security requires configuring both of these tools appropriately for your unique security risk profile. This means planning your security architecture carefully to align it the rest of your security framework. For example, your firewall rules impact the way Amazon Identity Access Management (IAM) handles user permissions. Some (but not all) IAM features can be implemented at the network firewall layer of security. Before you can manage AWS network security effectively , you must familiarize yourself with how AWS security tools work and what sets them apart. Everything you need to know about security groups vs NACLs AWS security groups explained: Every AWS account has a single default security group assigned to the default VPC in every Region. It is configured to allow inbound traffic from network interfaces assigned to the same group, using any protocol and any port. It also allows all outbound traffic using any protocol and any port. Your default security group will also allow all outbound IPv6 traffic once your VPC is associated with an IPv6 CIDR block. You can’t delete the default security group, but you can create new security groups and assign them to AWS EC2 instances. Each security group can only contain up to 60 rules, but you can set up to 2500 security groups per Region. You can associate many different security groups to a single instance, potentially combining hundreds of rules. These are all allow rules that allow traffic to flow according the ports and protocols specified. For example, you might set up a rule that authorizes inbound traffic over IPv6 for linux SSH commands and sends it to a specific destination. This could be different from the destination you set for other TCP traffic. Security groups are stateful, which means that requests sent from your instance will be allowed to flow regardless of inbound traffic rules. Similarly, VPC security groups automatically responses to inbound traffic to flow out regardless of outbound rules. However, since security groups do not support deny rules, you can’t use them to block a specific IP address from connecting with your EC2 instance. Be aware that Amazon EC2 automatically blocks email traffic on port 25 by default – but this is not included as a specific rule in your default security group. AWS NACLs explained: Your VPC comes with a default NACL configured to automatically allow all inbound and outbound network traffic. Unlike security groups, NACLs filter traffic at the subnet level. That means that Network ACL rules apply to every EC2 instance in the subnet, allowing users to manage AWS resources more efficiently. Every subnet in your VPC must be associated with a Network ACL. Any single Network ACL can be associated with multiple subnets, but each subnet can only be assigned to one Network ACL at a time. Every rule has its own rule number, and Amazon evaluates rules in ascending order. The most important characteristic of NACL rules is that they can deny traffic. Amazon evaluates these rules when traffic enters or leaves the subnet – not while it moves within the subnet. You can access more granular data on data flows using VPC flow logs. Since Amazon evaluates NACL rules in ascending order, make sure that you place deny rules earlier in the table than rules that allow traffic to multiple ports. You will also have to create specific rules for IPv4 and IPv6 traffic – AWS treats these as two distinct types of traffic, so rules that apply to one do not automatically apply to the other. Once you start customizing NACLs, you will have to take into account the way they interact with other AWS services. For example, Elastic Load Balancing won’t work if your NACL contains a deny rule excluding traffic from 0.0.0.0/0 or the subnet’s CIDR. You should create specific inclusions for services like Elastic Load Balancing, AWS Lambda, and AWS CloudWatch. You may need to set up specific inclusions for third-party APIs, as well. You can create these inclusions by specifying ephemeral port ranges that correspond to the services you want to allow. For example, NAT gateways use ports 1024 to 65535. This is the same range covered by AWS Lambda functions, but it’s different than the range used by Windows operating systems. When creating these rules, remember that unlike security groups, NACLs are stateless. That means that when responses to allowed traffic are generated, those responses are subject to NACL rules. Misconfigured NACLs deny traffic responses that should be allowed, leading to errors, reduced visibility, and potential security vulnerabilities . How to configure and map NACL associations A major part of optimizing NACL architecture involves mapping the associations between security groups and NACLs. Ideally, you want to enforce a specific set of rules at the subnet level using NACLs, and a different set of instance-specific rules at the security group level. Keeping these rulesets separate will prevent you from setting inconsistent rules and accidentally causing unpredictable performance problems. The first step in mapping NACL associations is using the Amazon VPC console to find out which NACL is associated with a particular subnet. Since NACLs can be associated with multiple subnets, you will want to create a comprehensive list of every association and the rules they contain. To find out which NACL is associated with a subnet: Open the Amazon VPC console . Select Subnets in the navigation pane. Select the subnet you want to inspect. The Network ACL tab will display the ID of the ACL associated with that network, and the rules it contains. To find out which subnets are associated with a NACL: Open the Amazon VPC console . Select Network ACLS in the navigation pane. Click over to the column entitled Associated With. Select a Network ACL from the list. Look for Subnet associations on the details pane and click on it. The pane will show you all subnets associated with the selected Network ACL. Now that you know how the difference between security groups and NACLs and you can map the associations between your subnets and NACLs, you’re ready to implement some security best practices that will help you strengthen and simplify your network architecture. 5 best practices for AWS NACL management Pay close attention to default NACLs, especially at the beginning Since every VPC comes with a default NACL, many AWS users jump straight into configuring their VPC and creating subnets, leaving NACL configuration for later. The problem here is that every subnet associated with your VPC will inherit the default NACL. This allows all traffic to flow into and out of the network. Going back and building a working security policy framework will be difficult and complicated – especially if adjustments are still being made to your subnet-level architecture. Taking time to create custom NACLs and assign them to the appropriate subnets as you go will make it much easier to keep track of changes to your security posture as you modify your VPC moving forward. Implement a two-tiered system where NACLs and security groups complement one another Security groups and NACLs are designed to complement one another, yet not every AWS VPC user configures their security policies accordingly. Mapping out your assets can help you identify exactly what kind of rules need to be put in place, and may help you determine which tool is the best one for each particular case. For example, imagine you have a two-tiered web application with web servers in one security group and a database in another. You could establish inbound NACL rules that allow external connections to your web servers from anywhere in the world (enabling port 443 connections) while strictly limiting access to your database (by only allowing port 3306 connections for MySQL). Look out for ineffective, redundant, and misconfigured deny rules Amazon recommends placing deny rules first in the sequential list of rules that your NACL enforces. Since you’re likely to enforce multiple deny rules per NACL (and multiple NACLs throughout your VPC), you’ll want to pay close attention to the order of those rules, looking for conflicts and misconfigurations that will impact your security posture. Similarly, you should pay close attention to the way security group rules interact with your NACLs. Even misconfigurations that are harmless from a security perspective may end up impacting the performance of your instance, or causing other problems. Regularly reviewing your rules is a good way to prevent these mistakes from occurring. Limit outbound traffic to the required ports or port ranges When creating a new NACL, you have the ability to apply inbound or outbound restrictions. There may be cases where you want to set outbound rules that allow traffic from all ports. Be careful, though. This may introduce vulnerabilities into your security posture. It’s better to limit access to the required ports, or to specify the corresponding port range for outbound rules. This establishes the principle of least privilege to outbound traffic and limits the risk of unauthorized access that may occur at the subnet level. Test your security posture frequently and verify the results How do you know if your particular combination of security groups and NACLs is optimal? Testing your architecture is a vital step towards making sure you haven’t left out any glaring vulnerabilities. It also gives you a good opportunity to address misconfiguration risks. This doesn’t always mean actively running penetration tests with experienced red team consultants, although that’s a valuable way to ensure best-in-class security. It also means taking time to validate your rules by running small tests with an external device. Consider using AWS flow logs to trace the way your rules direct traffic and using that data to improve your work. How to diagnose security group rules and NACL rules with flow logs Flow logs allow you to verify whether your firewall rules follow security best practices effectively. You can follow data ingress and egress and observe how data interacts with your AWS security rule architecture at each step along the way. This gives you clear visibility into how efficient your route tables are, and may help you configure your internet gateways for optimal performance. Before you can use the Flow Log CLI, you will need to create an IAM role that includes a policy granting users the permission to create, configure, and delete flow logs. Flow logs are available at three distinct levels, each accessible through its own console: Network interfaces VPCs Subnets You can use the ping command from an external device to test the way your instance’s security group and NACLs interact. Your security group rules (which are stateful) will allow the response ping from your instance to go through. Your NACL rules (which are stateless) will not allow the outbound ping response to travel back to your device. You can look for this activity through a flow log query. Here is a quick tutorial on how to create a flow log query to check your AWS security policies. First you’ll need to create a flow log in the AWS CLI. This is an example of a flow log query that captures all rejected traffic for a specified network interface. It delivers the flow logs to a CloudWatch log group with permissions specified in the IAM role: aws ec2 create-flow-logs \ –resource-type NetworkInterface \ –resource-ids eni-1235b8ca123456789 \ –traffic-type ALL \ –log-group-name my-flow-logs \ –deliver-logs-permission-arn arn:aws:iam::123456789101:role/publishFlowLogs Assuming your test pings represent the only traffic flowing between your external device and EC2 instance, you’ll get two records that look like this: 2 123456789010 eni-1235b8ca123456789 203.0.113.12 172.31.16.139 0 0 1 4 336 1432917027 1432917142 ACCEPT OK 2 123456789010 eni-1235b8ca123456789 172.31.16.139 203.0.113.12 0 0 1 4 336 1432917094 1432917142 REJECT OK To parse this data, you’ll need to familiarize yourself with flow log syntax. Default flow log records contain 14 arguments, although you can also expand custom queries to return more than double that number: Version tells you the version currently in use. Default flow logs requests use Version 2. Expanded custom requests may use Version 3 or 4. Account-id tells you the account ID of the owner of the network interface that traffic is traveling through. The record may display as unknown if the network interface is part of an AWS service like a Network Load Balancer. Interface-id shows the unique ID of the network interface for the traffic currently under inspection. Srcaddr shows the source of incoming traffic, or the address of the network interface for outgoing traffic. In the case of IPv4 addresses for network interfaces, it is always its private IPv4 address. Dstaddr shows the destination of outgoing traffic, or the address of the network interface for incoming traffic. In the case of IPv4 addresses for network interfaces, it is always its private IPv4 address. Srcport is the source port for the traffic under inspection. Dstport is the destination port for the traffic under inspection. Protocol refers to the corresponding IANA traffic protocol number . Packets describes the number of packets transferred. Bytes describes the number of bytes transferred. Start shows the start time when the first data packet was received. This could be up to one minute after the network interface transmitted or received the packet. End shows the time when the last data packet was received. This can be up to one minutes after the network interface transmitted or received the data packet. Action describes what happened to the traffic under inspection: ACCEPT means that traffic was allowed to pass. REJECT means the traffic was blocked, typically by security groups or NACLs. Log-status confirms the status of the flow log: OK means data is logging normally. NODATA means no network traffic to or from the network interface was detected during the specified interval. SKIPDATA means some flow log records are missing, usually due to internal capacity restraints or other errors. Going back to the example above, the flow log output shows that a user sent a command from a device with the IP address 203.0.113.12 to the network interface’s private IP address, which is 172.31.16.139. The security group’s inbound rules allowed the ICMP traffic to travel through, producing an ACCEPT record. However, the NACL did not let the ping response go through, because it is stateless. This generated the REJECT record that followed immediately after. If you configure your NACL to permit output ICMP traffic and run this test again, the second flow log record will change to ACCEPT. azon Web Services (AWS) is one of the most popular options for organizations looking to migrate their business applications to the cloud. It’s easy to see why: AWS offers high capacity, scalable and cost-effective storage, and a flexible, shared responsibility approach to security. Essentially, AWS secures the infrastructure, and you secure whatever you run on that infrastructure. However, this model does throw up some challenges. What exactly do you have control over? How can you customize your AWS infrastructure so that it isn’t just secure today, but will continue delivering robust, easily managed security in the future? The basics: security groups AWS offers virtual firewalls to organizations, for filtering traffic that crosses their cloud network segments. The AWS firewalls are managed using a concept called Security Groups. These are the policies, or lists of security rules, applied to an instance – a virtualized computer in the AWS estate. AWS Security Groups are not identical to traditional firewalls, and they have some unique characteristics and functionality that you should be aware of, and we’ve discussed them in detail in video lesson 1: the fundamentals of AWS Security Groups , but the crucial points to be aware of are as follows. First, security groups do not deny traffic – that is, all the rules in security groups are positive, and allow traffic. Second, while security group rules can be set to specify a traffic source, or a destination, they cannot specify both on the same rule. This is because AWS always sets the unspecified side (source or destination) as the instance to which the group is applied. Finally, single security groups can be applied to multiple instances, or multiple security groups can be applied to a single instance: AWS is very flexible. This flexibility is one of the unique benefits of AWS, allowing organizations to build bespoke security policies across different functions and even operating systems, mixing and matching them to suit their needs. Adding Network ACLs into the mix To further enhance and enrich its security filtering capabilities AWS also offers a feature called Network Access Control Lists (NACLs). Like security groups, each NACL is a list of rules, but there are two important differences between NACLs and security groups. The first difference is that NACLs are not directly tied to instances, but are tied with the subnet within your AWS virtual private cloud that contains the relevant instance. This means that the rules in a NACL apply to all of the instances within the subnet, in addition to all the rules from the security groups. So a specific instance inherits all the rules from the security groups associated with it, plus the rules associated with a NACL which is optionally associated with a subnet containing that instance. As a result NACLs have a broader reach, and affect more instances than a security group does. The second difference is that NACLs can be written to include an explicit action, so you can write ‘deny’ rules – for example to block traffic from a particular set of IP addresses which are known to be compromised. The ability to write ‘deny’ actions is a crucial part of NACL functionality. It’s all about the order As a consequence, when you have the ability to write both ‘allow’ rules and ‘deny’ rules, the order of the rules now becomes important. If you switch the order of the rules between a ‘deny’ and ‘allow’ rule, then you’re potentially changing your filtering policy quite dramatically. To manage this, AWS uses the concept of a ‘rule number’ within each NACL. By specifying the rule number, you can identify the correct order of the rules for your needs. You can choose which traffic you deny at the outset, and which you then actively allow. As such, with NACLs you can manage security tasks in a way that you cannot do with security groups alone. However, we did point out earlier that an instance inherits security rules from both the security groups, and from the NACLs – so how do these interact? The order by which rules are evaluated is this; For inbound traffic, AWS’s infrastructure first assesses the NACL rules. If traffic gets through the NACL, then all the security groups that are associated with that specific instance are evaluated, and the order in which this happens within and among the security groups is unimportant because they are all ‘allow’ rules. For outbound traffic, this order is reversed: the traffic is first evaluated against the security groups, and then finally against the NACL that is associated with the relevant subnet. You can see me explain this topic in person in my new whiteboard video: Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call

Insecure Service Protocols and Ports Okay, we all have them… they’re everyone’s dirty little network security secrets that we try not to... Risk Management and Vulnerabilities Removing insecure protocols In networks Matthew Pascucci 2 min read Matthew Pascucci Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 7/15/14 Published Insecure Service Protocols and Ports Okay, we all have them… they’re everyone’s dirty little network security secrets that we try not to talk about. They’re the protocols that we don’t mention in a security audit or to other people in the industry for fear that we’ll be publicly embarrassed. Yes, I’m talking about cleartext protocols which are running rampant across many networks. They’re in place because they work, and they work well, so no one has had a reason to upgrade them. Why upgrade something if it’s working right? Wrong. These protocols need to go the way of records, 8-tracks and cassettes (many of these protocols were fittingly developed during the same era). You’re putting your business and data at serious risk by running these insecure protocols. There are many insecure protocols that are exposing your data in cleartext, but let’s focus on the three most widely used ones: FTP, Telnet and SNMP. FTP (File Transfer Protocol) This is by far the most popular of the insecure protocols in use today. It’s the king of all cleartext protocols and one that needs to be smitten from your network before it’s too late. The problem with FTP is that all authentication is done in cleartext which leaves little room for the security of your data. To put things into perspective, FTP was first released in 1971, almost 45 years ago. In 1971 the price of gas was 40 cents a gallon, Disneyland had just opened and a company called FedEx was established. People, this was a long time ago. You need to migrate from FTP and start using an updated and more secure method for file transfers, such as HTTPS, SFTP or FTPS. These three protocols use encryption on the wire and during authentication to secure the transfer of files and login. Telnet If FTP is the king of all insecure file transfer protocols then telnet is supreme ruler of all cleartext network terminal protocols. Just like FTP, telnet was one of the first protocols that allowed you to remotely administer equipment. It became the defacto standard until it was discovered that it passes authentication using cleartext. At this point you need to hunt down all equipment that is still running telnet and replace it with SSH, which uses encryption to protect authentication and data transfer. This shouldn’t be a huge change unless your gear cannot support SSH. Many appliances or networking gear running telnet will either need the service enabled or the OS upgraded. If both of these options are not appropriate, you need to get new equipment, case closed. I know money is an issue at times, but if you’re running a 45 year old protocol on your network with the inability to update it, you need to rethink your priorities. The last thing you want is an attacker gaining control of your network via telnet. Its game over at this point. SNMP (Simple Network Management Protocol) This is one of those sneaky protocols that you don’t think is going to rear its ugly head and bite you, but it can! escortdate escorts . There are multiple versions of SNMP, and you need to be particularly careful with versions 1 and 2. For those not familiar with SNMP, it’s a protocol that enables the management and monitoring of remote systems. Once again, the strings can be sent via cleartext, and if you have access to these credentials you can connect to the system and start gaining a foothold on the network, including managing, applying new configurations or gaining in-depth monitoring details of the network. In short, it a great help for attackers if they can get hold of these credentials. Luckily version 3.0 of SNMP has enhanced security that protects you from these types of attacks. So you must review your network and make sure that SNMP v1 and v2 are not being used. These are just three of the more popular but insecure protocols that are still in heavy use across many networks today. By performing an audit of your firewalls and systems to identify these protocols, preferably using an automated tool such as AlgoSec Firewall Analyzer , you should be able to pretty quickly create a list of these protocols in use across your network. It’s also important to proactively analyze every change to your firewall policy (again preferably with an automated tool for security change management ) to make sure no one introduces insecure protocol access without proper visibility and approval. Finally, don’t feel bad telling a vendor or client that you won’t send data using these protocols. If they’re making you use them, there’s a good chance that there are other security issues going on in their network that you should be concerned about. It’s time to get rid of these protocols. They’ve had their usefulness, but the time has come for them to be sunset for good. Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call

Firewall monitoring is an important part of maintaining strict network security. Every firewall device has an important role to play... Firewall Policy Management 10 Best Firewall Monitoring Software for Network Security Asher Benbenisty 2 min read Asher Benbenisty Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 10/24/23 Published Firewall monitoring is an important part of maintaining strict network security. Every firewall device has an important role to play protecting the network, and unexpected flaws or downtime can put the entire network at risk. Firewall monitoring solutions provide much-needed visibility into the status and behavior of your network firewall setup. They make the security of your IT infrastructure observable, enabling you to efficiently deploy resources towards managing and securing traffic flows. This is especially important in environments with multiple firewall hardware providers, where you may need to verify firewalls, routers, load balancers, and more from a central interface. What is the role of Firewall Monitoring Software? Every firewall in your network is a checkpoint that verifies traffic according to your security policy. Firewall monitoring software assesses the performance and reports the status of each firewall in the network. This is important because a flawed or defective firewall can’t do its job properly. In a complex enterprise IT environment, dedicating valuable resources to manually verifying firewalls isn’t feasible. The organization may have hardware firewalls from Juniper or Cisco, software firewalls from Check Point, and additional built-in operating system firewalls included with Microsoft Windows. Manually verifying each one would be a costly and time-consuming workflow that prevents limited security talent from taking on more critical tasks. Additionally, admins would have to wait for individual results from each firewall in the network. In the meantime, the network would be exposed to vulnerabilities that exploit faulty firewall configurations. Firewall monitoring software solves this problem using automation . By compressing all the relevant data from every firewall in the network into a single interface, analysts and admins can immediately detect security threats that compromise firewall security. The Top 10 Firewall Monitoring Tools Right Now 1. AlgoSec AlgoSec enables security teams to visualize and manage complex hybrid networks . It uses a holistic approach to provide instant visibility to the entire network’s security configuration, including cloud and on-premises infrastructure. This provides a single pane of glass that lets security administrators preview policies before enacting them and troubleshoot issues in real-time. 2. Wireshark Wireshark is a widely used network protocol analyzer. It can capture and display the data traveling back and forth on a network in real-time. While it’s not a firewall-specific tool, it’s invaluable for diagnosing network issues and understanding traffic patterns. As an open-source tool, anyone can download WireShark for free and immediately start using it to analyze data packets. 3. PRTG Network Monitor PRTG is known for its user-friendly interface and comprehensive monitoring capabilities. It supports SNMP and other monitoring methods, making it suitable for firewall monitoring. Although it is an extensible and customizable solution, it requires purchasing a dedicated on-premises server. 4. SolarWinds Firewall Security Manager SolarWinds offers a suite of network management tools, and their Firewall Security Manager is specifically designed for firewall monitoring and management. It helps with firewall rule analysis, change management, and security policy optimization. It is a highly configurable enterprise technology that provides centralized incident management features. However, deploying SolarWinds can be complex, and the solution requires specific on-premises hardware to function. 5. FireMon FireMon is a firewall management and analysis platform. It provides real-time visibility into firewall rules and configurations, helping organizations ensure that their firewall policies are compliant and effective. FireMon minimizes security risks related to policy misconfigurations, extending policy management to include multiple security tools, including firewalls. 6. ManageEngine ManageEngine’s OpManager offers IT infrastructure management solutions, including firewall log analysis and reporting. It can help you track and analyze traffic patterns, detect anomalies, and generate compliance reports. It is intuitive and easy to use, but only supports monitoring devices across multiple networks with its higher-tier Enterprise Edition. It also requires the installation of on-premises hardware. 7. Tufin Tufin SecureTrack is a comprehensive firewall monitoring and management solution. It provides real-time monitoring, change tracking, and compliance reporting for firewalls and other network devices. It can automatically discover network assets and provide comprehensive information on network assets, but may require additional configuration to effectively monitor complex enterprise networks. 8. Cisco Firepower Management Center If you’re using Cisco firewalls, the Firepower Management Center offers centralized management and monitoring capabilities. It provides insights into network traffic, threats, and policy enforcement. Cisco simplifies network management and firewall monitoring by offering an intuitive centralized interface that lets admins control Cisco firewall devices directly. 9. Symantec Symantec (now part of Broadcom) offers firewall appliances with built-in monitoring and reporting features. These appliances are known for providing comprehensive coverage to endpoints like desktop workstations, laptops, and mobile devices. Symantec also provides some visibility into firewall configurations, but it is not a dedicated service built for this purpose. 10. Fortinet Fortinet’s FortiAnalyzer is designed to work with Fortinet’s FortiGate firewalls. It provides centralized logging, reporting, and analysis of network traffic and security events. This provides customers with end-to-end visibility into emerging threats on their networks and even includes useful security automation tools. It’s relatively easy to deploy, but integrating it with a complex set of firewalls may take some time. Benefits of Firewall Monitoring Software Enhanced Security Your firewalls are your first line of defense against cyberattacks, preventing malicious entities from infiltrating your network. Threat actors know this, and many sophisticated attacks start with attempts to disable firewalls or overload them with distributed denial of service (DDoS) attacks. Without a firewall monitoring solution in place, you may not be aware such an attack is happening until it’s too late. Even if your firewalls are successfully defending against the attack, your detection and response team should be ready to start mitigating risk the moment the attack is launched. Traffic Control Firewalls can add strain and latency to network traffic. This is especially true of software firewalls, which have to draw computing resources from the servers they protect. Over time, network congestion can become an expensive obstacle to growth, creating bottlenecks that reduce the efficiency of every device on the network. Improperly implemented firewalls can play a major role in these bottlenecks because they have to verify every data packet transferred through them. With firewall monitoring, system administrators can assess the impact of firewall performance on network traffic and use that data to more effectively balance network loads. Organizations can reduce overhead by rerouting data flows and finding low-cost storage options for data they don’t constantly need access to. Real-time Alerts If attackers manage to break through your defenses and disable your firewall, you will want to know immediately. Part of having a strong security posture is building a multi-layered security strategy. Your detection and response team will need real-time updates on the progress of active cyberattacks. They will use this information to free the resources necessary to protect the organization and mitigate risk. Organizations that don’t have real-time firewall monitoring in place won’t know if their firewalls fail against an ongoing attack. This can lead to a situation where the CSIRT team is forced to act without clear knowledge about what they’re facing. Performance Monitoring Poor network performance can have a profound impact on the profitability of an enterprise-sized organization. Drops in network quality cost organizations more than half a million dollars per year , on average. Misconfigured firewalls can contribute to poor network performance if left unaddressed while the organization grows and expands its network. Properly monitoring the performance of the network requires also monitoring the performance of the firewalls that protect it. System administrators should know if overly restrictive firewall policies prevent legitimate users from accessing the data they need. Policy Enforcement Firewall monitoring helps ensure security policies are implemented and enforced in a standardized way throughout the organization. They can help discover the threat of shadow IT networks made by users communicating outside company-approved devices and applications. This helps prevent costly security breaches caused by negligence. Advanced firewall monitoring solutions can also help security leaders create, save, and update policies using templates. The best of these solutions enable security teams to preview policy changes and research elaborate “what-if” scenarios, and update their core templates accordingly. Selecting the Right Network Monitoring Software When considering a firewall monitoring service, enterprise security leaders should evaluate their choice based on the following features: Scalability Ensure the software can grow with your network to accommodate future needs. Ideally, both your firewall setup and the monitoring service responsible for it can grow at the same pace as your organization. Pay close attention to the way the organization itself is likely to grow over time. A large government agency may require a different approach to scalability than an acquisition-oriented enterprise with many separate businesses under its umbrella. Customizability Look for software that allows you to tailor security rules to your specific requirements. Every organization is unique. The appropriate firewall configuration for your organization may be completely different than the one your closest competitor needs. Copying configurations and templates between organizations won’t always work. Your network monitoring solution should be able to deliver performance insights fine-tuned to your organization’s real needs. If there are gaps in your monitoring capabilities, there are probably going to be gaps in your security posture as well. Integration Compatibility with your existing network infrastructure is essential for seamless operation. This is another area where every organization is unique. It’s very rare for two organizations to use the same hardware and software tools, and even then there may be process-related differences that can become obstacles to easy integration. Your organization’s ideal firewall monitoring solution should provide built-in support for the majority of the security tools the organization uses. If there are additional tools or services that aren’t supported, you should feel comfortable with the process of creating a custom integration without too much difficulty. Reporting Comprehensive reporting features provide insights into network activity and threats. It should generate reports that fit the formats your analysts are used to working with. If the learning curve for adopting a new technology is too high, achieving buy-in will be difficult. The best network monitoring solutions provide a wide range of reports into every aspect of network and firewall performance. Observability is one of the main drivers of value in this kind of implementation, and security leaders have no reason to accept compromises here. AlgoSec for Real-time Network Traffic Analysis Real-time network traffic monitoring reduces security risks and enables faster, more significant performance improvements at enterprise scale. Security professionals and network engineers need access to clear, high-quality insight on data flows and network performance, and AlgoSec delivers. One way AlgoSec deepens the value of network monitoring is through the ability to connect applications directly to security policy rules . When combined with real-time alerts, this provides deep visibility into the entire network while reducing the need to conduct time-consuming manual queries when suspicious behaviors or sub-optimal traffic flows are detected. Firewall Monitoring Software: FAQs How Does Firewall Monitoring Software Work? These software solutions manage firewalls so they can identify malicious traffic flows more effectively. They connect multiple hardware and software firewalls to one another through a centralized interface. Administrators can gather information on firewall performance, preview or change policies, and generate comprehensive reports directly. This enables firewalls to detect more sophisticated malware threats without requiring the deployment of additional hardware. How often should I update my firewall monitoring software? Regular updates are vital to stay protected against evolving threats. When your firewall vendor releases an update, it often includes critical security data on the latest emerging threats as well as patches for known vulnerabilities. Without these updates, your firewalls may become vulnerable to exploits that are otherwise entirely preventable. The same is true for all software, but it’s especially important for firewalls. Can firewall monitoring software prevent all cyberattacks? While highly effective, no single security solution is infallible. Organizations should focus on combining firewall monitoring software with other security measures to create a multi-layered security posture. If threat actors successfully disable or bypass your firewalls, your detection and response team should receive a real-time notification and immediately begin mitigating cyberattack risk. Is open-source firewall monitoring software a good choice? Open-source options can be cost-effective, but they may require more technical expertise to configure and maintain. This is especially true for firewall deployments that rely on highly customized configurations. Open-source architecture can make sense in some cases, but may present challenges to scalability and the affordability of hiring specialist talent later on. How do I ensure my firewall doesn’t block legitimate traffic? Regularly review and adjust your firewall rules to avoid false positives. Sophisticated firewall solutions include features for reducing false positives, while simpler firewalls are often unable to distinguish genuine traffic from malicious traffic. Advanced firewall monitoring services can help you optimize your firewall deployment to reduce false positives without compromising security. How does firewall monitoring enhance overall network security? Firewalls can address many security threats, from distributed denial of service (DDoS) attacks to highly technical cross-site scripting attacks. The most sophisticated firewalls can even block credential-based attacks by examining outgoing content for signs of data exfiltration. Firewall monitoring allows security leaders to see these processes in action and collect data on them, paving the way towards continuous security improvement and compliance. What is the role of VPN audits in network security? Advanced firewalls are capable of identifying VPN connections and enforcing rules specific to VPN traffic. However, firewalls are not generally capable of decrypting VPN traffic, which means they must look for evidence of malicious behavior outside the data packet itself. Firewall monitoring tools can audit VPN connections to determine if they are harmless or malicious in nature, and enforce rules for protecting enterprise assets against cybercriminals equipped with secure VPNs . What are network device management best practices? Centralizing the management of network devices is the best way to ensure optimal network performance in a rapid, precise way. Organizations that neglect to centralize firewall and network device management have to manually interact with increasingly complex fleets of network hardware, software applications, and endpoint devices. This makes it incredibly difficult to make changes when needed, and increases the risks associated with poor change management when they happen. What are the metrics and notifications that matter most for firewall monitoring? Some of the important parameters to pay attention to include the volume of connections from new or unknown IP addresses, the amount of bandwidth used by the organization’s firewalls, and the number of active sessions on at any given time. Port information is especially relevant because so many firewall rules specify actions based on the destination port of incoming traffic. Additionally, network administrators will want to know how quickly they receive notifications about firewall issues and how long it takes to resolve those issues. What is the role of bandwidth and vulnerability monitoring? Bandwidth monitoring allows system administrators to find out which users and hosts consume the most bandwidth, and how network bandwidth is shared among various protocols. This helps track network performance and provides visibility into security threats that exploit bandwidth issues. Denial of service (DoS) attacks are a common cyberattack that weaponizes network bandwidth. What’s the difference between on-premises vs. cloud-based firewall monitoring? Cloud-based firewall monitoring uses software applications deployed as cloud-enabled services while on-premises solutions are physical hardware solutions. Physical solutions must be manually connected to every device on the network, while cloud-based firewall monitoring solutions can automatically discover assets and IT infrastructure immediately after being deployed. What is the role of configuration management? Updating firewall configurations is an important part of maintaining a resilient security posture. Organizations that fail to systematically execute configuration changes on all assets on the network run the risk of forgetting updates or losing track of complex policies and rules. Automated firewall monitoring solutions allow admins to manage configurations more effectively while optimizing change management. What are some best practices for troubleshooting network issues? Monitoring tools offer much-needed visibility to IT professionals who need to address network problems. These tools help IT teams narrow down the potential issues and focus their time and effort on the most likely issues first. Simple Network Management Protocol (SNMP) monitoring uses a client-server application model to collect information running on network devices. This provides comprehensive data about network devices and allows for automatic discovery of assets on the network. What’s the role of firewall monitoring in Windows environments? Microsoft Windows includes simple firewall functionality in its operating system platform, but it is best-suited to personal use cases on individual endpoints. Organizations need a more robust solution for configuring and enforcing strict security rules, and a more comprehensive way to monitor Windows-based networks as a whole. Platforms like AlgoSec help provide in-depth visibility into the security posture of Windows environments. How do firewall monitoring tools integrate with cloud services? Firewall monitoring tools provide observability to cloud-based storage and computing services like AWS and Azure. Cloud-native monitoring solutions can ingest network traffic coming to and from public cloud providers and make that data available for security analysts. Enterprise security teams achieve this by leveraging APIs to automate the transfer of network performance data from the cloud provider’s infrastructure to their own monitoring platform. What are some common security threats and cyberattacks that firewalls can help mitigate? Since firewalls inspect every packet of data traveling through the network perimeter, they play a critical role detecting and mitigating many different threats and attacks. Simple firewalls can block unsophisticated denial-of-service (DoS) attacks and detect known malware variants. Next-generation firewalls can prevent data breaches by conducting deep packet analysis, identifying compromised applications and user accounts, and even blocking sensitive data from leaving the network altogether. What is the importance of network segmentation and IP address management? Network segmentation protects organizations from catastrophic data breaches by ensuring that even successful cyberattacks are limited in scope. If attackers compromise one part of the network, they will not necessarily have access to every other part. Security teams achieve segmentation in part by effectively managing network IP addresses according to a robust security policy and verifying the effects of policy changes using monitoring software. Schedule a demo Related Articles Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read 5 Multi-Cloud Environments Cloud Security Mar 19, 2023 · 2 min read Convergence didn’t fail, compliance did. Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call