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Learn how firewall rules secure your network from cyber threats. Explore types, best practices, and management strategies to optimize your firewall security. Firewall rules & requirements (inbound vs. outbound) How to secure your network from threats? The cybersecurity landscape is increasingly volatile, with a massive rise in cyberattacks. Malicious cyber actors are relentlessly scouring the internet for vulnerable networks. Any company that wants to keep its network secure must implement a network security solution – a firewall. Cyber attackers keep evolving and finding ways to compromise security systems. As a result, companies need to implement and maintain security best practices. Installing a firewall is not enough; you have to take a step further to ensure the firewall rules are up-to-date and properly managed. If you want to learn how firewall rules work and secure your network from threats, keep reading! This article covers everything you need to know, including types of firewall rules, examples of firewall rules, and firewall rule best practices. Schedule a Demo What are firewall rules? Firewall rules are the major components of firewall policies that determine which types of traffic your firewall allows in and out of your network, and which are blocked. They are access control mechanisms that firewalls use to protect your network from being infiltrated by malicious or unauthorized traffic. Firewall rules examine the control information in individual packets, and either block or allow them based on a set of rules or predetermined criteria. These predetermined criteria or rule components include a source IP address, a destination IP address, ports, protocol type (TCP, UDP, or ICMP), and services. Firewall rules control how the firewalls prevent malicious programs and unauthorized traffic from compromising your network. So properly managing your firewall rules across your infrastructures is instrumental to securing your network from threats. Schedule a Demo How do firewall rules work? A firewall examines each incoming and outgoing data packet and matches it against the firewall rules. A packet is allowed to go through to its destination if it matches one of the rules that allow traffic. If a packet matches none of the rulesor hit a rule with deny, it is rejected. The rejection or mismatch is reported if the firewall is configured to do so. Firewalls are programmed to work with access control lists (ACLs). ACLs contain lists of permissions that determine network traffic that is allowed or blocked. An access control list details the conditions a data packet must meet before the ACL action (allow, deny, or reject) can be executed. To help you understand how firewall rules work, here’s a practical example: if a firewall rule states that traffic to destination N should be allowed only if it is from IP address M, the firewall will check the packet source and destination of incoming packets, and allow packets that meet the M & N rule to go through. If its packet’s destination is N but its source is unidentified or different from M, it is blocked. Packets are checked against firewall rules from top to bottom, and the first rule that matches the packet overrides the other rules below. The last rule is Deny Rest. This means that all packets not expressly permitted by the rules are blocked. You can create a firewall rule in pfSense. pfSense is an open-source firewall and router with unified threat management, load balancing, multi-WAN, a DNS Resolver, and a VPN. It supports a wide range of network technologies, including IPv4 & IPv6 addresses and pfBlockerNG. Other firewalls you can use to create firewall rules include Zenarmor, Windows Defender, and iptables. Schedule a Demo Why are firewall rules important? Firewall rules help network administrators to regulate access to networks. With firewall rules, you can determine what is allowed in and out of your network. For example, they prevent dangerous files like worms and viruses from accessing your network and consuming bandwidth. When it comes to protecting devices that operate within your network, firewall rules establish an essential line of defense. Firewalls (and other security measures like endpoint protection and security certifications) prevent malicious actors from accessing and compromising devices connected to your network or operating inside your network’s environment. Firewall rules help you comply with regulatory standards. Depending on your industry, relevant regulatory agencies expect your company to maintain a certain level of security. For example, if your business is located in the EU region or collects personal data of EU citizens, it is mandated to comply with GDPR. Schedule a Demo What are the main types of firewall rules? There are various types of firewall rules. They are categorized based on the type of security architecture under consideration. That being said, here are some of the major types of firewall rules: 1. Access rule As the name implies, this firewall rule blocks or grants access to inbound and outbound traffic based on certain conditions. The source address, destination address, port number, and protocol are key information that the access rule evaluates to determine whether access should be given or denied. 2. Network address translation (NAT) rule NAT helps you hide the original IP address of a private network – enabling you to protect your network. It makes traffic routing easier and smoothens the inflow & outflow of traffic to and from your network. 3. Application level gateways This type of firewall rule enables network administrators to implement policies that protect your internal network. Application-level gateways function as shields or gatekeepers between your internal network and the public internet. Administrators use them to regulate access to public networks, block some sites, limit access to certain content, and regulate devices allowed to access your network. 4. Stateful packet filtering This rule evaluates data packets and filters them against preset conditions. The traffic is denied access if it fails to meet the requirements outlined by the predetermined security criteria. 5. Circle-level gateways Circle-level gateways do not filter individual packets but rather monitor TCP handshakes to determine whether a session is legitimate and the remote system is considered trusted. Consequently, these gateways provide anonymity to your internal network. Schedule a Demo What is an example of a firewall rule? Firewall rules frequently consist of a source address, source port, destination address, destination port, and an action that determines whether to Allow or Deny the packet. In the following firewall ruleset example, the firewall is never directly accessed from the public network. This is because hackers who can directly access the firewall, can modify or delete rules and allow unwanted travel. Source addressSource portDestination addressDestination portAction AnyAny10.10.10.1AnyDenyAnyAny10.10.10.2AnyDeny10.10.10.1AnyAnyAnyDeny10.10.10.2AnyAnyAnyDeny In the following firewall ruleset example, all traffic from the trusted network is allowed out. This ruleset should be placed below the ruleset above. Since firewall rules are checked from top to bottom, specific rules should be placed before rules that are more general. Source addressSource portDestination addressDestination portAction 10.10.10.0AnyAnyAnyAllow Schedule a Demo What are the best ways to manage firewall rules? Effective management of firewall rules is necessary to avoid conflicting configurations and ensure your security infrastructure is powerful enough to ward off malicious attacks. To manage firewall rules better, do the following: ● Maintain proper documentation Properly document policies, rules, and workflows. It’s difficult for your network administrators to stay organized and manage firewall rules without proper documentation. Implement a strict documentation policy that mandates administrators to document policies and configuration changes. This improves visibility and ensures seamless continuity even if a key network operator leaves the company. ● Assign tasks with caution Ensure that only well-trained network operators have the privilege to assign and alter firewall rules. Allowing everyone on your security team to assign and change firewall rules increases the chances of misconfiguration. Giving such a privilege to a select few does the opposite and makes containing mismanagement easier. ● Use a standardized naming convention It’s easy to get confused about which configuration does what. This is more likely to happen where there is no naming convention. To avoid conflicting configurations, name each rule to clarify its purpose. By clearly defining the rules, conflicts can be easily resolved. ● Flag temporary rules Some rules are created to function just for a while – temporary rules. To keep things simple and ‘neat,’ flag temporary rules so they can be eliminated when they are no longer required. ● Order your rules Order rules in a specific pattern. For example, begin with global rules and narrow down to user-specific rules. ● Use a firewall management solution Many administrators use a firewall management and orchestration solution to streamline the firewall rule management process. The solution integrates with your firewall and uses built-in automation for managing firewall settings and configurations from a single dashboard. A firewall management tool helps you automate activities, gain visibility on all firewall rules, optimize firewall rules, remove rule anomalies, generate reports, etc. Schedule a Demo What are the best practices for firewall rules? To ensure your firewall works properly and offers the best security possible, there are some key best practices you have to follow when configuring and managing firewall rules: Review the firewall rules regularly The cyber threat landscape is always changing. Therefore, you must regularly review the firewall rules to ensure they provide optimal security against threats. Reviewing firewall rules helps you to be several steps ahead of malicious cyber actors, remove rule anomalies, and maintain compliance. Cyber attackers are relentlessly devising new ways to compromise security systems, infiltrate networks & subnets, and wreak havoc. You need to update the firewall rules regularly to counter new attacks. Obsolete rules can be maneuvered and the firewall compromised. You have to keep evolving the rules to stay ahead of malicious actors. Remove ineffective, redundant firewall rules. Are there rules that are no longer needed? Are there overlapping rules that are taking up space and confusing your network administrators? Look out for unnecessary configurations and remove them to free up the system and avoid confusion. In addition to helping you keep your network safe, reviewing firewall rules regularly also allows you to maintain compliance with regulatory standards such as HIPAA and GDPR. Keep tabs on firewall logs Keeping an eye on the firewall log helps administrators to monitor traffic flow, identify suspicious activities, and proactively fix challenges. Monitoring firewall logs gives you visibility into your infrastructure, enabling you to get to know your network users and the nature of their activities. Reduce complexity by categorizing firewall rules Make firewall rule structure simple and easy to manage by grouping rules with similar characteristics. This approach reduces configuration complexity, improves ease of administration, and optimizes firewall performance. Implement least-privileged access Do not grant users more privileges than necessary to perform their tasks. This ensures that only an authorized user can create a new rule, change a security policy, or gain access to specific resources. Block high-risk ports Blocking some ports can significantly decrease the risk of a network breach. The following table outlines the ports you should block as recommended by the SANS Institute . The table features services, TCP port, UDP port, port number, and port range. ServicePortPort number NetBIOS in Windows NTTCP and UDP135NetBIOS in Windows NTUDP137 and 138TFTP daemonUDP69HTTP (except to external web services)TCP80SSL (except to external web servers)TCP443Lockd (Linux DoS vulnerability)TCP & UDP4045Common high-order HTTP portsTCP8000, 8080, 8888LDAPTCP & UDP389IMAPTCP143SOCKSTCP1080SNMPUDP161 & 162SyslogUDP514Cisco AUX port (binary)TCP6001NFSTCP & UDP2049X WindowsTCP & UDP6000 – 6255 Schedule a Demo How can AlgoSec help you manage your firewall rules better? Managing firewall rules manually can be overwhelming and time-consuming – especially when dealing with multiple firewall solutions. With the help of a firewall management solution, you easily configure firewall rules and manage configurations from a single dashboard. This is where AlgoSec comes in! AlgoSec’s powerful firewall management solution integrates with your firewalls to deliver unified firewall policy management from a single location, thus streamlining the entire process. With AlgoSec, you can maintain clear visibility of your firewall ruleset, automate the management process, assess risk & optimize rulesets, streamline audit preparation & ensure compliance, and use APIs to access many features through web services. Schedule a Demo Select a size How to secure your network from threats? What are firewall rules? How do firewall rules work? Why are firewall rules important? What are the main types of firewall rules? What is an example of a firewall rule? What are the best ways to manage firewall rules? What are the best practices for firewall rules? How can AlgoSec help you manage your firewall rules better? 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

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Explore Algosec's customer success stories to see how organizations worldwide improve security, compliance, and efficiency with our solutions. Discovery Streamlines Firewall Audits And Simplifies The Change Workflow Organization Discovery Industry Financial Services Headquarters Johannesberg, South Africa Download case study Share Customer
success stories "With AlgoSec we can now get, in a click of a button, what took two to three weeks per firewall to produce manually" Background Discovery Limited is a South African-founded financial services organization that operates in the healthcare, life assurance, short-term insurance, savings and investment products and wellness markets. Founded in 1992, Discovery was guided by a clear core purpose — to make people healthier and to enhance and protect their lives. Underpinning this core purpose is the belief that through innovation, Discovery can be a powerful market disruptor. The company, with headquarters in Johannesburg, South Africa, has expanded its operations globally and currently serves over 4.4 million clients across South Africa, the United Kingdom, the United States, China, Singapore and Australia.Operating in the highly regulated insurance and health sectors, Discovery monitors its compliance with international privacy laws and security criteria, includingPCI-DSS globally, Sarbanes-Oxley and HIPAA in the US, the Data Protection Act in the UK, and South Africa’s Protection of Personal Information Act. Challenge During its early years, the company managed its firewalls through an internally developed, legacy system which offered very limited visibility into the change request process.“We grew faster than anyone expected,” says Marc Silver, Security Manager at Discovery. “We needed better visibility into what changes were requested to which firewall, for what business need and also to ensure proper risk analysis.”Discovery’s growth necessitated a rapid increase in the number of firewalls deployed, and the corresponding ruleset sizes. The time required to audit them grew by orders of magnitude, ultimately taking up to three weeks per firewall. The IT Security team of four engineers recognized that it needed a fresh approach to manage risk and ensure compliance. Solution Discovery chose the AlgoSec Security Management Solution to deliver automated, comprehensive firewall operations, risk analysis and change management. Silver states that compared to AlgoSec’s competitors, “AlgoSec has a more tightly integrated change control, and is easier to manage. Another big advantage is how it finds unused rules and recommends rule consolidations,” says Silver.AlgoSec’s integration with Request Tracker (RT) change management system was also important in Discovery’s selection of a security management solution. “We use RT for our internal ticketing system, and the stability of AlgoSec’s integration with RT met our requirements. AlgoSec’s visual workflow is clear, easy to understand and more mature than the others we evaluated,” adds Silver. Results Since implementing AlgoSec, Discovery has found its security audits running more effectively. Discovery relies on AlgoSec’s built-in compliance reports to address Sarbanes-Oxley, HIPAA, PCI-DSS, and other national and international regulatory requirements. “Every year internal auditors would take our entire rulesets for each firewall pair and tell us where we needed to make improvements. AlgoSec now allows us to submit an automated report to our auditing team. It tells them what our security state is, and what needs to be remediated. The total process used to take three months. Now, in a click of a button, we can get what took two to three weeks per firewall to produce manually,” says Silver.Discovery has also found an unexpected advantage: “AlgoSec tells us what rules are in use and what rules are not. For one firewall, we were able to remove 30,000 rules. A firewall with 500,000 rules isn’t going to cope as well as one with 100,000 rules. By optimizing our devices, AlgoSec saves us money in the long term by enabling us to delay upgrading to a larger firewall,” adds Silver.In conclusion, Silver states that “Now we can see what is and isn’t happening in our security system. It has made a much bigger impact than we thought it would. With AlgoSec’s policy optimization, and the time we save on compliance, AlgoSec has given us a much stronger competitive edge than we had six months ago.” Schedule time with one of our experts

Cloud threats are at an all-time high. But not only that, hackers are becoming more sophisticated with cutting-edge tools and new ways to... Cloud Security A Guide to Upskilling Your Cloud Architects & Security Teams in 2023 Rony Moshkovich 2 min read Rony Moshkovich 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 8/2/23 Published Cloud threats are at an all-time high. But not only that, hackers are becoming more sophisticated with cutting-edge tools and new ways to attack your systems. Cloud service providers can only do so much. So, most of the responsibility for securing your data and applications will still fall on you. This makes it critical to equip your organization’s cloud architects and security teams with the necessary skills that help them stay ahead of the evolving threat landscape. Although the core qualities of a cloud architect remain the same, upskilling requires them to learn emerging skills in strategy, leadership, operational, and technical areas. Doing this makes your cloud architects and security teams well-rounded to solve complex cloud issues and ensure the successful design of cloud security architecture. Here, we’ll outline the top skills for cloud architects. This can be a guide for upskilling your current security team and hiring new cloud security architects. But besides the emerging skills, what are the core responsibilities of a cloud security architect? Responsibilities of Cloud Security Architects A cloud security architect builds, designs, and deploys security systems and controls for cloud-based computing services and data storage systems. Their responsibilities will likely depend on your organization’s cloud security strategy. Here are some of them: 1. Plan and Manage the Organization’s Cloud Security Architecture and Strategy: Security architects must work with other security team members and employees to ensure the security architecture aligns with your organization’s strategic goals. 2. Select Appropriate Security Tools and Controls: Cloud security architects must understand the capabilities and limitations of cloud security tools and controls and contribute when selecting the appropriate ones. This includes existing enterprise tools with extensibility to cloud environments, cloud-native security controls, and third-party services. They are responsible for designing new security protocols whenever needed and testing them to ensure they work as expected. 3. Determine Areas of Deployments for Security Controls: After selecting the right tools, controls, and measures, architects must also determine where they should be deployed within the cloud security architecture. 4. Participating in Forensic Investigations: Security architects may also participate in digital forensics and incident response during and after events. These investigations can help determine how future incidents can be prevented. 5. Define Design Principles that Govern Cloud Security Decisions: Cloud security architects will outline design principles that will be used to make choices on the security tools and controls to be deployed, where, and from which sources or vendors. 6. Educating employees on data security best practices: Untrained employees can undo the efforts of cloud security architects. So, security architects must educate technical and non-technical employees on the importance of data security. This includes best practices for creating strong passwords, identifying social engineering attacks, and protecting sensitive information. Best Practices for Prioritizing Cloud Security Architecture Skills Like many other organizations, there’s a good chance your company has moved (or is in the process of moving) all or part of its resources to the cloud. This could either be a cloud-first or cloud-only strategy. As such, they must implement strong security measures that protect the enterprise from emerging threats and intrusions. Cloud security architecture is only one of many aspects of cloud security disciplines. And professionals specializing in this field must advance their skillset to make proper selections for security technologies, procedures, and the entire architecture. However, your cloud security architects cannot learn everything. So, you must prioritize and determine the skills that will help them become better architects and deliver effective security architectures for your organization. To do this, you may want to consider the demand and usage of the skill in your organization. Will upskilling them with these skills solve any key challenge or pain point in your organization? You can achieve this by identifying the native security tools key to business requirements, compliance adherence, and how cloud risks can be managed effectively. Additionally, you should consider the relevance of the skill to the current cloud security ecosystem. Can they apply this skill immediately? Does it make them better cloud security architects? Lastly, different cloud deployment (e.g., a public, private, edge, and distributed cloud) or cloud service models (e.g., Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service (SaaS)) bring unique challenges that demand different skillsets. So, you must identify the necessary skills peculiar to each proposed project. Once you have all these figured out, here are some must-have skillsets for cloud security architects. Critical Skills for Cloud Security Architect Cloud security architects need several common skills, like knowledge of programming languages (.NET, PHP, Python, Java, Ruby, etc.), network integration with cloud services, and operating systems (Windows, macOS, and Linux). However, due to the evolving nature of cloud threats, more skills are required. Training your security teams and architects can have more advantages than onboarding new recruits. This is because existing teams are already familiar with your organization’s processes, culture, and values. However, whether you’re hiring new cloud security architects or upskilling your current workforce, here are the most valuable skills to look out for or learn. 1. Experience in cloud deployment models (IaaS, PaaS, and SaaS) It’s important to have cloud architects and security teams that integrate various security components in different cloud deployments for optimal results. They must understand the appropriate security capabilities and patterns for each deployment. This includes adapting to unique security requirements during deployment, combining cloud-native and third-party tools, and understanding the shared responsibility model between the CSP and your organization. 2. Knowledge of cloud security frameworks and standards Cloud security frameworks, standards, and methodologies provide a structured approach to security activities. Interpreting and applying these frameworks and standards is a critical skill for security architects. Some cloud security frameworks and standards include ISO 27001, ISAE 3402, CSA STAR, and CIS benchmarks. Familiarity with regional or industry-specific requirements like HIPAA, CCPA, and PCI DSS can ensure compliance with regulatory requirements. Best practices like the AWS Well-Architected Framework, Microsoft Cloud Security Benchmark, and Microsoft Cybersecurity Reference Architectures are also necessary skills. 3. Understanding of Native Cloud Security Tools and Where to Apply Them Although most CSPs have native tools that streamline your cloud security policies, understanding which tools your organization needs and where is a must-have skill. There are a few reasons why; it’s cost-effective, integrates seamlessly with the respective cloud platform, enhances management and configuration, and aligns with the CSP’s security updates. Still, not all native tools are necessary for your cloud architecture. As native security tools evolve, cloud architects must constantly be ahead by understanding their capabilities. 4. Knowledge of Cloud Identity and Access Management (IAM) Patterns IAM is essential for managing user access and permissions within the cloud environment. Familiarity with IAM patterns ensures proper security controls are in place. Note that popular cloud service providers, like Amazon Web Services, Microsoft Azure, and Google Cloud Platform, may have different processes for implementing IAM. However, the key principles of IAM policies remain. So, your cloud architects must understand how to define appropriate IAM measures for access controls, user identities, authentication techniques like multi-factor authentication (MFA) or single sign-on (SSO), and limiting data exfiltration risks in SaaS apps. 5. Proficiency with Cloud-Native Application Protection Platforms CNAPP is a cloud-native security model that combines the capabilities of Cloud Security Posture Management (CSPM), Cloud Workload Protection Platform (CWPP), and Cloud Service Network Security (CSNS) into a single platform. Cloud solutions like this simplify monitoring, detecting, and mitigating cloud security threats and vulnerabilities. As the nature of threats advances, using CNAPPs like Prevasio can provide comprehensive visibility and security of your cloud assets like Virtual Machines, containers, object storage, etc. CNAPPs enable cloud security architects to enhance risk prioritization by providing valuable insights into Kubernetes stack security configuration through improved assessments. 6. Aligning Your Cloud Security Architecture with Business Requirements It’s necessary to align your cloud security architecture with your business’s strategic goals. Every organization has unique requirements, and your risk tolerance levels will differ. When security architects are equipped to understand how to bridge security architecture and business requirements, they can ensure all security measures and control are calibrated to mitigate risks. This allows you to prioritize security controls, ensures optimal resource allocation, and improves compliance with industry-specific regulatory requirements. 7. Experience with Legacy Information Systems Although cloud adoption is increasing, many organizations have still not moved all their assets to the cloud. At some point, some of your on-premises legacy systems may need to be hosted in a cloud environment. However, legacy information systems’ architecture, technologies, and security mechanisms differ from modern cloud environments. This makes it important to have cloud security architects with experience working with legacy information systems. Their knowledge will help your organization solve any integration challenges when moving to the cloud. It will also help you avoid security vulnerabilities associated with legacy systems and ensure continuity and interoperability (such as data synchronization and maintaining data integrity) between these systems and cloud technologies. 8. Proficiency with Databases, Networks, and Database Management Systems (DBMS) Cloud security architects must also understand how databases and database management systems (DBMS) work. This knowledge allows them to design and implement the right measures that protect data stored within the cloud infrastructure. Proficiency with databases can also help them implement appropriate access controls and authentication measures for securing databases in the cloud. For example, they can enforce role-based access controls (RBAC) within the database environment. 9. Solid Understanding of Cloud DevOps DevOps is increasingly becoming more adopted than traditional software development processes. So, it’s necessary to help your cloud security architects embrace and support DevOps practices. This involves developing skills related to application and infrastructure delivery. They should familiarize themselves with tools that enable integration and automation throughout the software delivery lifecycle. Additionally, architects should understand agile development processes and actively work to ensure that security is seamlessly incorporated into the delivery process. Other crucial skills to consider include cloud risk management for enterprises, understanding business architecture, and approaches to container service security. Conclusion By upskilling your cloud security architects, you’re investing in their personal development and equipping them with skills to navigate the rapidly evolving cloud threat landscape. It allows them to stay ahead of emerging threats, align cloud security practices with your business requirements, and optimize cloud-native security tools. Cutting-edge solutions like Cloud-Native Application Protection Platforms (CNAPPs) are specifically designed to help your organization address the unique challenges of cloud deployments. With Prevasio, your security architects and teams are empowered with automation, application security, native integration, API security testing, and cloud-specific threat mitigation capabilities. Prevasio’s agentless CNAPP provides increased risk visibility and helps your cloud security architects implement best practices. Contact us now to learn more about how our platform can help scale your cloud security. 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

Last week our CTO, Professor Avishai Wool, presented a technical webinar on the do’s and don’ts for managing external connectivity to and... Auditing and Compliance 4 tips to manage your external network connections Joanne Godfrey 2 min read Joanne Godfrey 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 8/10/15 Published Last week our CTO, Professor Avishai Wool, presented a technical webinar on the do’s and don’ts for managing external connectivity to and from your network . We kicked off our webinar by polling the audience (186 people) on how many external permanent connections into their enterprise network they have. 40% have less than 50 external connections 31% have 50-250 external connections 24% have more than 250 external connections 5% wish they knew how many external connections they have! Clearly this is a very relevant issue for many enterprises, and one which can have a profound effect on security. The webinar covered a wide range of best practices for managing the external connectivity lifecycle and I highly recommend that you view the full presentation. But in the meantime, here are a few key issues that you should be mindful of when considering how to manage external connectivity to and from your network: Network Segmentation While there has to be an element of trust when you let an external partner into your network, you must do all you can to protect your organization from attacks through these connections. These include placing your servers in a demilitarized zone (DMZ), segregating them by firewalls, restricting traffic in both directions from the DMZ as well as using additional controls such as web application firewalls, data leak prevention and intrusion detection. Regulatory Compliance Bear in mind that if the data being accessed over the external connection is regulated, both your systems and the related peer’s systems are now subject t. So if the network connection touches credit card data, both sides of the connection are in scope, and outsourcing the processing and management of regulated data to a partner does not let you off the hook. Maintenance Sometimes you will have to make changes to your external connections, either due to planned maintenance work by your IT team or the peer’s team, or as a result of unplanned outages. Dealing with changes that affect external connections is more complicated than internal maintenance, as it will probably require coordinating with people outside your organisation and tweaking existing workflows, while adhering to any contractual or SLA obligations. As part of this process, remember that you’ll need to ensure that your information systems allow your IT teams to recognize external connections and provide access to the relevant technical information in the contract, while supporting the amended workflows. Contracts In most cases there is a contract that governs all aspects of the external connection – including technical and business issues. The technical points will include issues such as IP addresses and ports, technical contact points, SLAs, testing procedures and the physical location of servers. It’s important, therefore, that this contract is adhered to whenever dealing with technical issues related to external connections. These are just a few tips and issues to be aware of. To watch the webinar from Professor Wool in full, check out the recording here . 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

Business-Driven security management for financial institutions 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

Efficiently manage network security policies with AlgoSec’s solution to ensure compliance, reduce risks, and streamline operations across your hybrid IT environment. Network security policy management software (NSPM) What is network security policy management? Network security policy management is the process of creating, implementing and maintaining policies and procedures to protect an organization’s network and data against unauthorized access, use, disclosure and disruption, modification or destruction. Specific activities include identifying and mitigating security risks, testing and deploying changes to connectivity and security rules, ensuring compliance with relevant laws and regulations and more. AlgoSec provides the leading solution for simplifying and automating network security policy management across on-premise firewalls, SDNs and in the public clouds. Its centralized management enables sweeping visibility, effective risk detection and intelligent automation. These capabilities come together to drive stronger security, sustained compliance, reduced risk and faster application delivery – all while cutting manual work, costs, and compliance efforts. Schedule a Demo Why do you need firewall and network security management? Centralized firewall and network security management is essential for preserving a secure, compliant environment – across the devices and workflows in your IT ecosystem. It’s also fundamental for solving a range of connected issues that generate security risks and non-compliance concerns: Technical debt Shadow IT Inconsistent, redundant and obsolete rules Visibility blind spots Growing network complexity IT personnel changes Emerging security vulnerabilities. A firewall and network security management solution helps you achieve IT security and compliance goals – at scale – through extensive integration options, full-scale visibility and intelligent automation. It keeps your hybrid network safe by providing clear processes for aspects ranging from change management to compliance reporting, and monitors if these processes remain effective as your requirements evolve. Schedule a Demo Network security management FAQ Frequently asked questions about network security management and AlgoSec’s network security policy management platform. How does firewall security management differ from network security management? Firewall security management is one of the specialized components of network security management – the practice of ensuring the overall safety of the entire network and its devices. Specifically, firewall management involves configuring rules to allow or block specific types of traffic based on factors such as IP address, port and protocol. Network security management covers a wider range of tasks, but both processes are essential for reducing the organization’s attack surface and for effective risk management. What key role does firewall configuration management play in network security? The security and exposure of web, email, VPN and database servers, routers, workstations and other devices depend on effective firewall configuration management. That’s because firewalls are responsible for blocking unwanted or malicious traffic (e.g. malware, ransomware, denial-of-service attacks, etc.) and allowing legitimate traffic to pass through. Besides creating traffic filtering rules, managing firewall configurations also involves securing access, keeping the firewall up to date. And since most regulatory authorities expect organizations to have firewalls as part of their security controls, the effectiveness of firewall configuration management cascades across compliance requirements as well. How does network security management help with risk management? Network security management activities help identify the sources of IT security risk, apply mitigating measures and monitor the effectiveness of this cycle as the business environment evolves. Specific processes include: Identifying potential vulnerabilities (e.g. application connectivity flows, weak credentials, unpatched software, open ports, etc.) through security assessments and penetration testing. Prioritizing risks and keeping security teams aligned on which high-impact security threats need fast resolution to avoid breaches and situations of non-compliance. Implementing security controls (e.g. firewalls, intrusion detection and prevention systems, encryption, etc.) that strengthen the organization’s security posture. Pushing firewall rules to devices so they don’t open security holes and increase exposure to cyberattacks. Continuously monitoring the network for evidence of security breaches, (e.g. unusual activity, unauthorized access etc.). Applying cybersecurity incident response plans in the event of a successful attack (e.g. isolating affected systems) to avoid or minimize downtime and ensure business continuity. How can I proactively assess and manage security threats? Information security offers a range of options to proactively determine and manage security threats across people, processes and technology: Regular security assessments that scrutinize networks, systems and applications to identify vulnerabilities and exposure to cyberattacks. Examples include penetration testing, vulnerability management and threat modeling. Multi-layered security through tools such as firewalls, intrusion detection and prevention systems and antivirus software. Policy and procedures reviews and updates that ensure they remain compliant and effective against bad actors’ evolving tactics. Network monitoring with real-time notifications to identify signs of compromise such as unusual login and account activity, suspicious or unknown files, and evidence of device tampering. Network log management that documents activity across cloud environments, web applications, endpoints and other systems, creating a trail of examinable evidence. Threat hunting searches for indicators of compromise from bad actors who may have evaded detection and maintained a covert presence in the network. Patch management that pinpoints outdated devices and software, delivering necessary upgrades to close security holes and fix known issues. Security awareness initiatives such as training employees and establishing a communication channel they can use to report potential security issues. The right technology reduces the complexity of managing multiple security layers and makes the entire process feasible and efficient. For instance, the AlgoSec Network Security Policy Management platform proactively evaluates the impact of proposed policy changes to minimize risk, prevent outages and maintain compliance. Because it also integrates with leading vulnerability scanners, AlgoSec maps security vulnerabilities to their business applications, so you can effectively assess and prioritize risks based on reliable context data. Can AlgoSec unify visibility and management across cloud, SDN and on-premise enterprise networks? IT and security managers who choose AlgoSec to simplify their network environments mention easy integration and comprehensive network insight as their main ROI drivers. That’s because the AlgoSec Network Security Policy Management platform provides full visibility across firewalls and security controls deployed on public and private clouds, as well as SDNs such as Cisco ACI and VMware NSX. The consolidation it enables makes it easy to: Have an up-to-date map of all the devices on the network Understand the information flow between firewalls Extract information about specific firewall rules Trim the firewall ruleset – by as much as 90% Reduce rule project reviews – from 1 month to 1 day according to our customers. Make firewall rule changes in minutes instead of days. Can I stay compliant using network security policy management solutions? Network security policy management solutions are indispensable to technical and business teams that need to coordinate across complex compliance tasks. They provide tangible benefits throughout the security policy management lifecycle: Automated discovery and visualization Real-time network topology updates Ongoing clean-up and optimization Automatic security rules documentation Continuous compliance checks Ready-to-use reports. An example of this is AlgoSec’s Network Security Policy Management platform, which generates pre-filled, audit-ready compliance reports for industry regulations (e.g. PCI DSS, HIPAA, SOX, ISO 27001, etc.). The AlgoSec solution also enables you to create customized corporate policies, which reduces audit preparation efforts by as much as 80% according to customers. I want to migrate my applications securely. Can AlgoSec’s Network Security Policy Management platform help me achieve this? Absolutely! AlgoSec’s Network Security Policy Management platform simplifies the entire process of migrating applications to the cloud or another data center. Its easy-to-use, customizable workflows help you automatically bring documentation up to date, clean up firewall rules, generate and push security policy changes to devices and lots more. It also keeps network access and the security policy’s integrity and compliance intact throughout the process. Customers mention effective orchestration of all migrations tasks as a core driver for ROI and report reducing rule migration time by 80%. What is the typical pricing range for network security policy management solutions? The cost of network security policy management solutions depends on: Pricing model – per license, per user, per endpoint or device or per usage (e.g. gigabytes processed). Contract duration – one-time fee or subscription (yearly, monthly). Add-ons and modifiers – pricing per integration, per update, per deployment hour. This results in a broad pricing range with large discrepancies between low-end and high-end network security policy management solutions. Yearly costs for complex environments with hundreds of users and multiple providers typically start at a few thousand US dollars and go up to six figures. If you’re interested in AlgoSec, you can request a quote, contact sales or locate a partner near you. We’d love to help! Schedule a Demo Additional network security policy management features AlgoSec’s Network Security Policy Management platform supports the following use cases Auditing and Compliance Avoid costly non-compliance with automatic checks and context-specific advice on proposed rule changes. Generate quick, audit-ready reports for regulations like PCI DSS, HIPAA, SOX, NERC and many more. Change Management Save 80% of the time spent on network security changes with automatic tracking and validation. Stay on top of things with real-time notifications, even when using a managed security service provider. Micro-segmentation Combine security modeling capabilities with deep knowledge of firewall information and application connectivity flows to ensure proper isolation. Automated micro-segmentation rules reduce your attack surface and monitor efficiency over time. Firewall & Network Security Risk Management Reduce risk across hybrid cloud environments by implementing a lean set of standardized firewall rules. Prevent errors and misconfigurations with automatic checks and quick remediation and clean-up. Digital Transformation Use out-of-the-box workflows to discover, map and migrate application connectivity with full compliance and no downtime. Reduce rule migration time by 80%, deploy necessary policy changes as you go, and increase your security posture and business agility. DevOps Improve application deployment speed and security with real-time policy visibility and fast troubleshooting. Simplify your DevOps workflow with smart automation and free your team up for other important tasks. Schedule a Demo Select a size What is network security policy management? Why do you need firewall and network security management? Network security management FAQ Additional network security policy management features 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

The Network Security Policy Management Lifecycle 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

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Webinars Tightening security posture with micro-segmentation Micro-segmentation protects your network by limiting the lateral movement of ransomware and other threats in your network. Yet successfully implementing a defense-in-depth strategy using micro-segmentation may be complicated. In this second webinar in a series of two webinars about ransomware, Yitzy Tannenbaum, Product Marketing Manager from AlgoSec and Jan Heijdra, Cisco Security Specialist, will provide a blueprint to implementing micro-segmentation using Cisco Secure Workload (formerly Cisco Tetration) and AlgoSec Network Security Policy Management. Join our live webinar to learn: Why micro-segmentation is critical to fighting ransomware Understand your business applications to create your micro-segmentation policy Validate your micro-segmentation policy is accurate Enforce these granular policies on workloads and summarized policies across your infrastructure Use risk and vulnerability analysis to tighten your workload and network security Identify and manage security risk and compliance in your micro-segmented environment January 27, 2021 Jan Heijdra Cisco Security Specialist Yitzy Tannenbaum Product Marketing Manager Relevant resources Micro-segmentation – from strategy to execution Keep Reading Defining & Enforcing a Micro-segmentation Strategy Read Document Building a Blueprint for a Successful Micro-segmentation Implementation Keep Reading Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue