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Cisco and AlgoSec Partner solution brief- Better together for risk management and audit 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

Explore Algosec's customer success stories to see how organizations worldwide improve security, compliance, and efficiency with our solutions. Leading semiconductor and display equipment company reduces risk and increases efficiency Organization Semiconductor Materials Industry Utilities & Energy Headquarters International Download case study Share Customer
success stories "Today, we are many times more efficient and secure thanks to AlgoSec." Background The company’s globally distributed network includes more than ten demilitarized zones (DMZs) with 20 billion events processed per month across the multiple company locations. Firewalls play a vital role in protecting intellectual property at the perimeter level. Every firewall event is logged and processed. Challenges The company’s operations require a very large and diverse network with a large Global Network Security operations team that is spread across the US, EMEA and Asia. The team is responsible for the management of all perimeter and internal security solutions, remote access solutions, customer connectivity solutions and the Security Operations Center (SOC). “We suffered from a lot of network security issues that prevented us from running at the speed of the business,” declared the Senior Manager of Global Security and SOC. Auditing Firewall rules was a long, tedious and painful process Access revocation was performed using a manual reminders process The diverse army of firewalls across the network estate resulted in a non-standard way of making and executing Firewall change requests, requiring many steps to complete the process An out-of-the-box ServiceNow workflow with limited functionality couldn’t keep up Limited reporting capabilities relied on manual data processing There was no way to track performance of SLAs The cumbersome approval process required managers to login to the company ticketing portal Notification of unauthorized or unapproved changes on firewalls was clumsy and slow The company decided to acquire an orchestration and automation solution that could identify and mitigate risky firewall rules. Since the company is subject to many industry and legal regulations, the solution would have to automate compliance reporting as well as ensure accountability for all firewall changes. The solution also would have to integrate into existing ticketing processes and workflows while enabling the company, at its own pace, to advance to more and more automation. Solution The company evaluated several solutions by reviewing their features carefully and putting the best among them to the test in parallel proof of concept projects. The senior manager recalls, “We had a very close look at the leading solutions in the Network Security Policy Management space. One of them definitely stood out from the pack as the superior solution.” The company chose AlgoSec Firewall Analyzer (AFA) and AlgoSec FireFlow (AFF), two of the flagship products in the AlgoSec arsenal. AlgoSec Firewall Analyzer ensures security and compliance by providing visibility and analysis into complex network security policies. AlgoSec FireFlow improves security and saves security staffs’ time by automating the entire security policy change process, eliminating manual errors, and reducing risk. Results In short order, the company was able to capitalize on the significant advantages of the AlgoSec solution. “It was easy to customize the AlgoSec solution to fit into our environment and enhance it,” continued the senior manager. “But it didn’t take long before we were using the power of the two products to help us adopt better practices for lower risk, higher security, and better efficiency of our team.” Today, the AlgoSec solution is delivering significant improvements to the company’s security processes such as: Visibility across the entire network with an easy-to-use-and-understand executive dashboard Integration with the ticketing tool Proactive analysis of change requests to ensure compliance risk mitigation Prevention of unauthorized changes Elimination of human errors and associated application outages Automatic discovery and mapping of application-connectivity flows Single Sign On (SSO) integration that eliminated static user passwords Support for mobile firewall change-request manager approval “We are a big company with an enormous volume of network-security activity,” stated the manager. “In addition to the superior capabilities of the solution, we greatly appreciated the excellent customization opportunities that AlgoSec’s Professional Services were able to help us with. Today, we are many times more efficient and secure thanks to AlgoSec.” Schedule time with one of our experts

Accelerate security with Algosec Jumpstart. Pre-configured packages for rapid deployment of firewalls, VPNs, and more. Streamline security operations now. Algosec Jumpstart: Quick Deployment Packages ---- ------- Schedule a Demo Select a size ----- Get the latest insights from the experts Choose a better way to manage your network

Explore Algosec's customer success stories to see how organizations worldwide improve security, compliance, and efficiency with our solutions. Leading FinTech Provider Reduces Security Risks With AlgoSec Organization FinTech Provider Industry Technology Headquarters Download case study Share Customer
success stories "With AlgoSec, we get a holistic view of how our entire network operates.” FinTech company gains a holistic view of hybrid network, enhances compliance posture. BACKGROUND The company has thousands of employees and annual revenue over a billion euros. The company manages 168,750 banking workstations, over 82.2 million customer accounts and ensures nationwide smooth cash supply with its 34,000 ATMs and self-service terminals. THE CHALLENGE The company relies on over 170 firewalls from Check Point Software, Juniper, and Cisco. They also have over 48,000 virtual servers, and security controls including proxies, security gateways, DDoS protection, and intrusion protection systems (IPS) from vendors including Check Point, Juniper, Cisco, and F5. Their networks process approximately 3.17 petabytes daily. Some of the challenges included: Difficulty maintaining internal toolset. High maintenance costs for their internal tools. Lack of visibility into their network. THE SOLUTION The company was searching for a solution that provided: Automation for their entire network, including software-defined networks. Visibility of the required communications of the business applications. Review and approval of traffic flows. Ability to apply a predefined set of firewall rules to newly deployed virtual machines. Following an in-depth evaluation, the company selected AlgoSec’s security policy management solution. “The main reason we chose AlgoSec was extensive support for multiple firewall vendors,” said their IT systems engineer. “We have a multi-vendor strategy, and AlgoSec fully supports all of the vendors that we are using.” For over a decade, they have been using AlgoSec’s Security Policy Management Solution, which includes AlgoSec Firewall Analyzer and AlgoSec FireFlow. After several years of relying just on Firewall Analyzer and FireFlow, they also added AlgoSec AppViz and AppChange (formerly AlgoSec BusinessFlow) to their toolkit. AlgoSec Firewall Analyzer ensures security and compliance by providing visibility and analysis into complex network security policies. AlgoSec FireFlow improves security and saves security staffs’ time by automating the entire security policy change process, eliminating manual errors, and reducing risk. AlgoSec AppViz provides critical security information regarding the firewalls and firewall rules supporting each connectivity flow by letting users discover, identify, and map business applications. AlgoSec AppChange empowers customers to make changes at the business application level, including application migrations, server deployment, and decommissioning projects. “AppViz and AppChange provide a more application-centric viewpoint. It’s really helpful for communication within our business departments,” said their IT engineer. THE RESULTS By using the AlgoSec Security Management solution, the company was able to automate their network policy change management processes, enhance their compliance posture, accelerate hardware migrations, and gain deep visibility into their hybrid network. Some of the benefits gained include: Deep integration and visibility into their hybrid network. Faster firewall migrations and deployments of virtual firewalls. Eliminated unnecessary policy changes and reduced the time required to process policy changes. Ability to review and approve communication flows (a PCI DSS requirement). Automatic assessment and reporting for regulations including PCI DSS and Sarbanes-Oxley (SOX). “The network map is one of the keys in AlgoSec,” said their network engineer. “The greatest benefit we had from AlgoSec is the integration into the network and holistic view of how our entire network operated,” added the network engineer. “AlgoSec really fits into our environment. You can customize AlgoSec to fit into your business processes and workflows,” noted the engineer. “We have a long partnership with AlgoSec and really appreciate working together and the great support we receive.” Schedule time with one of our experts

Compared to on-premises data storage, cloud computing comes with a lot of benefits. On-demand access to company data, flexibility, and... Cloud Security What is a Cloud Security Assessment? (and How to Perform One) 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 7/12/23 Published Compared to on-premises data storage, cloud computing comes with a lot of benefits. On-demand access to company data, flexibility, and fast collaboration are just a few. But along with these advantages come increased security risks. To manage them, companies should invest in regular cloud security assessments. What Is a Cloud Security Risk Assessment? A cloud security assessment evaluates the potential vulnerabilities of an organization’s cloud environment. These assessments are essential to mitigate risks and ensure the continued security of cloud-based systems. By looking at cloud applications, services, and data, companies can better understand the biggest threats to their cloud environment. By managing these threats, businesses can avoid costly workflow interruptions. A security assessment can be done by an organization’s internal security team or by an outside security expert. This can happen one time only, or it can be done regularly as part of an organization’s overall cybersecurity plan. How Do Cloud Security Risk Assessments Protect Your Business? Cloud-based systems and services are an essential part of most businesses nowadays. Unfortunately, what makes them convenient is also what makes them vulnerable to security threats. A cloud security risk assessment helps organizations find out what might go wrong and prevent it from happening. It also helps with prioritizing and managing the most serious issues before they become full-on data breaches. One way assessments do this is by identifying misconfigurations. Cloud misconfigurations are behind many security breaches. They result from errors introduced by network engineers working on early cloud systems. A cloud security assessment earmarks these and other outmoded security features for repair. What’s more, cloud security assessments identify third-party risks from APIs or plugins. When your company identifies risks and manages permissions, you keep your cloud environment safe. By mitigating third-party risks, you can still benefit from outside vendors. Of course, none of this information is valuable without employee education. Employees need to know about risks and how to stop them; this is the best way to reduce the number of security incidents caused by human error or carelessness. To put it simply, a cloud security assessment helps your business run smoothly. When you know the risks your company faces and can manage them, you reduce the impact of security-related incidents. That means you can recover faster and get back to work sooner. 7 Benefits of Cloud Security Risk Assessments Cloud security risk assessments provide lots of benefits. They can help you: Improve cloud security posture . Understanding the ins and outs of a cloud-based system helps organizations plan better. For example, they can modify their security budget or improve their risk management strategy based on the results. Uncover security vulnerabilities . Cloud security assessments pinpoint weak spots. This includes misconfigurations , access control issues, and missing multi-factor authentications (MFAs). Once identified, organizations can fix the issues and avoid security breaches. Develop a more secure multi-cloud environment . Most organizations use multiple cloud platforms. Usually, this involves private or public clouds or a combination of both. This is ideal from a financial and agility perspective. But every extra layer in a cloud environment introduces potential risks. A cloud security assessment is essential in identifying these cross-cloud threats. Achieve compliance with industry standards and regulatory bodies . Ensuring compliance with GDPR, PCI-DSS, and HIPAA helps protect organizations from millions of dollars of potential fines . Manage your reputation. A sensitive data leak or other cloud security incident damages a company’s reputation. Think of companies like Target, Facebook, and LinkedIn. All have faced backlash after security breaches . Conducting cloud security assessments shows that organizations value customer and stakeholder privacy. Detect past threats . A cloud security assessment looks for things that might be wrong with the way your cloud system is set up. It can also help you find out if there have been any past security problems. By doing this, you can see if someone has tried to tamper with the security of your cloud system in the past, which could signal a bigger problem. Increase efficiency . Cloud security assessments show you which security measures are working and which aren’t. By getting rid of security tools that aren’t needed, employees have more time to work on other tasks. Cost savings . The most compelling reason to run a cloud security assessment is that it helps save money. Cost savings come from eliminating unnecessary security measures and from missed work time due to breaches. What Risks Do Cloud Security Assessments Look For? Cloud security assessments focus on six areas to identify security vulnerabilities in your cloud infrastructure: overall security posture, access control and management, incident management, data protection, network security, and risk management and compliance. Some specific risks cloud security assessments look for include: Cloud Misconfigurations Misconfigurations are one of the most common threats to overall security posture. In fact, McAfee’s enterprise security study found that enterprises experience 3,500 security incidents per month because of misconfigurations. From improperly stored passwords to insecure automated backups, misconfiguration issues are everywhere. Because they’re so common, fixing this issue alone can reduce the risk of a security breach by up to 80%, according to Gartner . Access Control and Management Problems This assessment also highlights ineffective access control and management. One way it does this is by identifying excessive network permissions. Without the proper guardrails (like data segmentation) in place, an organization’s attack surface is greater. Plus, its data is at risk from internal and external threats. If an employee has too much access to a company’s network, they might accidentally delete or change important information. This could cause unintended system problems. Additionally, if hackers get access to the company’s network, they could easily steal important data. Cloud security assessments also look at credentials as part of user account management. A system that uses only static credentials for users or cloud workloads is a system at risk. Without multifactor authentication (MFA) in place, hackers can gain access to your system and expose your data. Improper Incident Management and Logging When it comes to incident management, a cloud security assessment can reveal insufficient or improper logging — problems that make detecting malicious activities more difficult. Left unchecked, the damage is more severe, making recovery more time-consuming and expensive. Insufficient Data and Network Security Data protection and network security go hand in hand. Without proper network controls in place (for example firewalls and intrusion detection), data in the cloud is vulnerable to attack. A cloud security assessment can identify gaps in both areas. Based on the results of a cloud security assessment, a company can make a risk management plan to help them react as quickly and effectively as possible in the event of an attack. The last aspect of cloud security the assessment looks at is compliance with industry standards. 7 Steps To Perform a Cloud Security Assessment The main components of cloud security assessments include: Identifying your cloud-based assets, discovering vulnerabilities through testing, generating recommendations, and retesting once the issues have been addressed. The steps to performing a cloud security assessment are as follows: Step One: Define the project Get a picture of your cloud environment. Look at your cloud service providers (CSPs), third-party apps, and current security tools. First, decide which parts of your system will be evaluated. Next, look at the type of data you’re handling or storing. Then consider the regulations your business must follow. Step Two: Identify potential threats Look at both internal and external threats to your cloud-based system. This could include endpoint security, misconfigurations, access control issues, data breaches, and more. Then figure out how likely each type of attack is. Finally, determine what impact each attack would have on your business operations. Step Three: Examine your current security system Look for vulnerabilities in your existing cloud security. In particular, pay attention to access controls, encryption, and network security. Step Four: Test Penetration testing, port scanners, and vulnerability scanners are used to find weaknesses in your cloud environment that were missed during the original risk assessment. Step Five: Analyze Look at the results and determine which weaknesses need immediate attention. Deal with the issues that will have the biggest impact on your business first. Then, focus on the issues most likely to occur. Finish by handling lower-priority threats. Step Six: Develop an action plan Come up with a time-bound remediation plan. This plan should spell out how your organization will deal with each security vulnerability. Assign roles and responsibilities as part of your incident response program. Depending on the results, this could include updating firewalls, monitoring traffic logs, and limiting access control. Step Seven: Maintain Cloud security assessments can be done as a one-off, but it’s much better to monitor your systems regularly. Frequent monitoring improves your organization’s threat intelligence. It also helps you identify and respond to new threats in real time. Getting Help With Your Cloud Security Assessment Cloud security assessment tools are used to identify vulnerabilities in a cloud infrastructure which could lead to data loss or compromise by attackers. As an agentless cloud security posture management (CSPM) tool , Prevasio helps identify and fix security threats across all your cloud assets in minutes. Our deep cloud scan checks for security weaknesses, malware, and compliance. This helps ensure that your company’s cloud environment is protected against potential risks. But any CSPM can do that . Prevasio is the only solution that provides container security dynamic behavior analysis. Our technology spots hidden backdoors in your container environments. It also identifies supply chain attack risks. Paired with our container security static analysis for vulnerabilities and malware, your containers will never be safer. Our CSPM works across multi-cloud, multi-accounts, cloud-native services , and cloud assets. Whether you’re using Microsoft Azure, S3 buckets in AWS, or Cosmos DB in GCP, Prevasio is the security system your company has been looking for. But we do more than identify security threats. We increase your team’s efficiency. How? By providing a prioritized list of cloud risks ranked according to CIS benchmarks. That means no more uncertainty about what needs to get done. Our easy-to-understand results help your team concentrate on the most important things. This saves time and money by reducing the need for extra administrative work. A Final Word on Cloud Security Assessments Performing regular cloud security assessments helps your business spot security issues before they become major problems. When you reinforce your security controls and define your incident response plan, you make your organization more efficient. Plus, you keep things going even when issues arise. Put together, these proactive measures can save you money. Sign up today and see how Prevasio can help your team ! FAQs About Cloud Security Assessments What are the four areas of cloud security? The four pillars of cloud security are data availability, data confidentiality, data integrity, and regulatory compliance. What is included in a security assessment? Cloud security assessments include: Identifying your cloud-based assets, discovering vulnerabilities through testing, generating recommendations, and retesting once the issues have been addressed. Schedule a demo Related Articles 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read 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 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

Optimizing Network Security and Accelerating Operations for a Major Telecommunications Provider Case Study 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

The certification demonstrates AlgoSec’s commitment to protecting its customers’ and partners’ data Data protection is a top priority for... Auditing and Compliance AlgoSec attains ISO 27001 Accreditation Tsippi Dach 2 min read Tsippi Dach 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 1/27/20 Published The certification demonstrates AlgoSec’s commitment to protecting its customers’ and partners’ data Data protection is a top priority for AlgoSec, proven by the enhanced security management system we have put in place to protect our customers’ assets. This commitment has been recognized by the ISO, who has awarded AlgoSec the ISO/IEC 27001 certification . The ISO 27001 accreditation is a voluntary standard awarded to service providers who meet the criteria for data protection. It outlines the requirements for building, monitoring, and improving an information security management system (ISMS); a systematic approach to managing sensitive company information including people, processes and IT systems. The ISO 27001 standard is made up of ten detailed control categories detailing information security, security organization, personnel security, physical security, access control, continuity planning, and compliance. To achieve the ISO 27001 certification, organizations must demonstrate that they can protect and manage sensitive company and customer information and undergo an independent audit by an accredited agency. The benefits of working with an ISO 27001 supplier include: Risk management – Standards that govern who can access information. Information security – Standards that detail how data is handled and transmitted. Business continuity – In order to maintain compliance, an ISMS must be continuously tested and improved. Obtaining the ISO 27001 certification is a testament to our drive for excellence and offers reassurance to our customers that our security measures meet the criteria set out by a global defense standard. Schedule a demo Related Articles 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read 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 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

Prof. Avishai Wool, AlgoSec co-founder and CTO, breaks down the truths and myths about micro-segmentation and how organizations can... Micro-segmentation Why Microsegmentation is Still a Go-To Network Security Strategy 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 5/3/22 Published Prof. Avishai Wool, AlgoSec co-founder and CTO, breaks down the truths and myths about micro-segmentation and how organizations can better secure their network before their next cyberattack Network segmentation isn’t a new concept. For years it’s been the go-to recommendation for CISOs and other security leaders as a means of securing expansive networks and breaking large attack surface areas down into more manageable chunks. Just as we separate areas of a ship with secure doors to prevent flooding in the event of a hull breach, network segmentation allows us to seal off areas of our network to prevent breaches such as ransomware attacks, which tend to self-propagate and spread laterally from machine to machine. Network segmentation tends to work best in controlling north-south traffic in an organization. Its main purpose is to segregate and protect key company data and limit lateral movement by attackers across the network. Micro-segmentation takes this one step further and offers more granular control to help contain lateral east-west movement. It is a technique designed to create secure zones in networks, allowing companies to isolate workloads from one another and introduce tight controls over internal access to sensitive data. Put simply, if network segmentation makes up the floors, ceilings and protective outer hull, micro-segmentation makes up the steel doors and corridors that allow or restrict access to individual areas of the ship. Both methods can be used in combination to fortify cybersecurity posture and reduce risk vulnerability across the security network. How does micro-segmentation help defend against ransomware? The number of ransomware attacks on corporate networks seems to reach record levels with each passing year. Ransomware has become so appealing to cybercriminals that it’s given way to a whole Ransomware-as-a-Service (RaaS) sub-industry, plying would-be attackers with the tools to orchestrate their own attacks. When deploying micro-segmentation across your security network, you can contain ransomware at the onset of an attack. When a breach occurs and malware takes over a machine on a given network, the policy embedded in the micro-segmented network should block the malware’s ability to propagate to an adjacent micro-segment, which in turn can protect businesses from a system-wide shutdown and save them a great financial loss. What does Zero Trust have to do with micro-segmentation? Zero trust is a manifestation of the principle of “least privilege” security credentialing. It is a mindset that guides security teams to not assume that people, or machines, are to be trusted by default. From a network perspective, zero-trust implies that “internal” networks should not be assumed to be more trustworthy than “external” networks – quotation marks are intentional. Therefore, micro-segmentation is the way to achieve zero trust at the network level: by deploying restrictive filtering policy inside the internal network to control east-west traffic. Just as individuals in an organization should only be granted access to data on a need-to-know basis, traffic should only be allowed to travel from one area of the business to another only if the supporting applications require access to those areas. Can a business using a public cloud solution still use micro-segmentation? Prior to the advent of micro-segmentation, it was very difficult to segment networks into zones and sub-zones because it required the physical deployment of equipment. Routing had to be changed, firewalls had to be locally installed, and the segmentation process would have to be carefully monitored and managed by a team of individuals. Fortunately for SecOps teams, this is no longer the case, thanks to the rapid adoption of cloud technology. There seems to be a misconception associated with micro-segmentation where it might be thought of as a strictly private cloud environment network security solution, whereas in reality, micro-segmentation can be deployed in a hybrid cloud environment – public cloud, private cloud and on-premise. In fact, all public cloud networks, including those offered by the likes of Azure and AWS, offer “baked in” filtering capabilities that make controlling traffic much easier. This lends itself well to the concept of micro-segmentation, so even those businesses that use a hybrid cloud setup can still benefit enormously. The Bottom Line Micro-segmentation presents a viable and scalable solution to tighten network security policies, despite its inherent implementation challenges. While many businesses may find it hard to manage this new method of security, it’s nevertheless a worthwhile endeavor. By utilizing a micro-segmentation method as part of its network security strategy, an organization can immediately bolster its network security against possible hackers and potential data breaches. To help you navigate through your micro-segmentation fact-finding journey, watch this webcast or read more in our resource hub . Schedule a demo Related Articles 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read 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 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

The Case and Criteria for Application-Centric Security Policy Management 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

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

As 2022 comes to a close, Professor Avishai Wool, AlgoSec Co-Founder and CTO, provides his top 5 issues organizations will need to be... IaC 2023 Cybersecurity Predictions and Best Practices 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 12/6/22 Published As 2022 comes to a close, Professor Avishai Wool, AlgoSec Co-Founder and CTO, provides his top 5 issues organizations will need to be aware in 2023 that will also dominate the cyber community conversation. 1) Application centric approach to network security will supersede basic NSPM I think the market has matured to the point where the NSPM approach has reached a tipping point and I see the shift to an application perspective becoming the de facto approach in network security policy management as there are better and more robust technologies in the market that can help organizations get there faster. I see this shift becoming even more viable in 2023 based on recent market trends in which organizations are opting for downsizing and trying to do more with the smaller staff at the expense of losing tribal knowledge. As a result, I see organizations shifting more towards adopting a holistic approach to network security that are more application centric in which they can retain critical knowledge, such as application traffic intent and application policy rules, so that the new generations can step in and pick up where the previous predecessors left off. 2) Containerization will enhance layered security I expect container security to be increasingly popular in the future, as companies understand that their existing network security mechanisms are not enough for the communication networks of today. Containers are seen as a cost-effective light-weight solution for deployment – and deploying them introduces another inner layer where security policies can be applied: behind the perimeter filters, the internal zoning, and the micro-segmentation, organizations can now also consider nano-segmentation at the container level. Vulnerability testing is another dimension of the container platform especially within cloud applications and SaaS products. The common Kubernetes platform offers both opportunities and challenges for vulnerability scanners. Beyond 2023 , businesses will need to enhance both their visibility and management capabilities of security within their containerized applications 3) Security driven IaaS ecosystems to improve network security I expect the popularity of Infrastructure as a service (IaaS) to continue to soar, making it difficult for security teams to keep up with the associated risks and vulnerabilities. Pre-set security settings may not meet the needs of the organization and customizing these settings can prove to be difficult. The customizability of IaaS offers great potential for productivity, but it also makes it complicated to secure. The bottom line is that companies can no longer depend on their network perimeter to guard sensitive data. In response, I anticipate organizations that begin utilizing an “Always-on Security” approach such as Infrastructure as Code (IaC) which would permit them to construct personalized policies to control the development environments during each phase of the software development life cycle (SDLC) and recognize potential risks, security flaws, and compliance issues on a what-if basis, before deploying flawed settings into production. 4) Cloud-native security tools will reign supreme I expect that cloud-based security systems will become more commonplace: these security solutions offer a wide range of abilities, such as secure access, identity and access management, data loss prevention, application security, automation of security, detection and prevention of intrusions, security information and event management, and encryption. With companies transitioning more workloads to the cloud, they will want to make use of many of these features. These tools make it possible for remote teams to manage a greater public cloud presence: comfortably configuring services and automating processes, to identify and preemptively tackle any kind of threats. To bridge the gap in cloud data security, I anticipate the emergence of data safeguarding systems that are designed specifically for cloud usage and are able to link up with public cloud systems in an advanced, agentless manner. This has been classified in the market as Cloud Native Application Protection Platform (CNAPP) . These platforms must be able to detect where the data is stored and what sorts of data are stored in the cloud, so that corporations can prioritize on what is most important – defending their most sensitive data and cloud-based applications without interfering with their normal operations. 5) Expect ransomware not to go away and get even more sophisticated Organizations in 2022 saw no let-up from ransomware threats, some of whom were attacked multiple times and I do not see any reason why this trend will change in 2023. Cyber criminals are getting more resourceful and savvier in their attempts to stay ahead of law enforcement, and I anticipate these attacks will only become more frequent as their perpetrators are proving more capable of infiltrating many organizations’ cyber defenses. In response, organizations will have to seek more technology solutions to protect data at the source. But that would not suffice. I think organizations will need to look beyond technological solutions and apply better preparedness strategies. Whether it be Zero Trust or something less overarching but more practical for an organization’s business needs, such as Micro-segmentation , it would ensure that threat-actors would not be able to access the data residing inside the security perimeter. Schedule a demo Related Articles 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read 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 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

Cloud computing has become a cornerstone of business operations, with cloud security at the forefront of strategic concerns. In a recent... Cloud Network Security Shaping tomorrow: Leading the way in cloud security Adel Osta Dadan 2 min read Adel Osta Dadan 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. cnapp Tags Share this article 12/28/23 Published Cloud computing has become a cornerstone of business operations, with cloud security at the forefront of strategic concerns. In a recent SANS webinar , our CTO Prof. Avishai Wool discussed why more companies are becoming more concerned protecting their containerized environments, given the fact that they are being targeted in cloud-based breaches more than ever. Watch the SANS webinar now! Embracing CNAPP (Cloud-Native Application Protection Platform) is crucial, particularly for its role in securing these versatile yet vulnerable container environments. Containers, encapsulating code and dependencies, are pivotal in modern application development, offering portability and efficiency. Yet, they introduce unique security challenges. With 45% of breaches occurring in cloud-based settings, the emphasis on securing containers is more critical than ever. CNAPP provides a comprehensive shield, addressing specific vulnerabilities inherent to containers, such as configuration errors or compromised container images. The urgent need for skilled container security experts The deployment of CNAPP solutions, while technologically advanced, also hinges on human expertise. The shortage of skills in cloud security management, particularly around container technologies, poses a significant challenge. As many as 35% of IT decision-makers report difficulties in navigating data privacy and security management, underscoring the urgent need for skilled professional’s adept in CNAPP and container security. The economic stakes of failing to secure cloud environments, especially containers, are high. Data breaches, on average, cost companies a staggering $4.35 million . This figure highlights not just the financial repercussions but also the potential damage to reputation and customer trust. CNAPP’s role extends beyond security, serving as a strategic investment against these multifaceted risks. As we navigate the complexitis of cloud security, CNAPP’s integration for container protection represents just one facet of a broader strategy. Continuous monitoring, regular security assessments, and a proactive approach to threat detection and response are also vital. These practices ensure comprehensive protection and operational resilience in a landscape where cloud dependency is rapidly increasing. The journey towards securing cloud environments, with a focus on containers, is an ongoing endeavour. The strategic implementation of CNAPP, coupled with a commitment to cultivating skilled cybersecurity expertise, is pivotal. By balancing advanced technology with professional acumen, organizations can confidently navigate the intricacies of cloud security, ensuring both digital and economic resilience in our cloud-dependent world. #CNAPP Schedule a demo Related Articles 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read 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 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