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Safeguarding the network architecture is the need of the hour. According to a study, the average cost of a data breach is at an all-time... Network Security Policy Management Network segmentation vs. VLAN explained 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 8/9/23 Published Safeguarding the network architecture is the need of the hour. According to a study, the average cost of a data breach is at an all-time high of $4.35 million. And this figure will only increase with governments and regulators becoming ever stricter on data breaches. The go-to method IT administrators adopt to safeguard their networks is network segmentation. By segmenting a larger network into smaller chunks, it becomes much more manageable to secure the entire network. But network segmentation is a broad concept and doesn’t refer to a single procedure. In fact, there are several segmentation processes — one of them being VLAN. Instead of simplifying, this adds to the complexity. In this article, we will explain the core difference between network segmentation and VLAN and when you should opt for a particular one over the other. What is network segmentation? Let’s start with the definitions of network segmentation and VLAN. By definition, network segmentation is the practice of compartmentalizing a network according to firewall rules . In other words, it’s about dividing a computer network into subnetworks. The subnetworks, at the IP level, are known as subnets. Each of the subnets then works independently and in isolation. Think of how a nation is split into various states and provinces for better management at the local level. Running an entire nation at the federal level is too much work. In addition to subnetting, there are other segmentation options like firewall segmentation and SDN (Software Defined Network) segmentation. But for this article’s sake, we will focus on subnets since those are the most common. What is VLAN? VLAN or Virtual LAN (Virtual Local Area Network) is also a type of network segmentation approach where the main physical network is divided into multiple smaller virtual networks. The division is done logically or virtually, not requiring buying additional physical resources. The same resource is divided using computer logic. There are several benefits to dividing the parts of the network, either using VLAN segmentation or subnet techniques. Some of them are: Broadcast domain isolation Both subnets and VLAN isolate broadcast domains. This way, broadcasting network traffic is contained in a single segment instead of being exposed to the entire network. This reduces the chance of network congestion during peak hours and unnecessary server overload, thereby maximizing efficiency. Enhanced security The isolation by subnets or VLAN enhances the IT network’s security policies. This is achieved through various factors that are at play. But primarily, the creation of subnetworks makes the flat network more secure. With multiple subnetworks, you can regulate the security parameters. Thus, those subnets containing critical data (like that of healthcare) can have enhanced cybersecurity measures more than others, making them harder to crack. So, from a security perspective, both subnets and VLAN are a must. Better network management With digitization and IT modernization, the IT infrastructure is growing. Concurrently, it’s getting harder to manage them. Microsegmentation is one way of managing the ever-growing infrastructure. By segmenting, you can deploy teams to each segment, thereby strengthening their management and accountability. With the implementation of SDN, you can even configure and automate the management of some of the subnetworks. Flexibility in scalability Many network administrators face network performance and scalability issues expanding resources. The issues are a mix of technical and economical. Network segmentation offers a solution to such issues. By segmenting the entire data center network, you can choose which segments to expand and control the resources granted to each segment. This also makes scalability more economical. While both offer scalability opportunities, VLAN offers superior functionality than subnets. Reduced scope of compliance Compliance is another area that IT execs need to work on. And network segmentation, either via subnets or VLAN, can help in this regard. By having subnets, you don’t have to audit your entire segmented network as required by regulators. Just audit the necessary subnets and submit the reports to the regulators for approval. This takes far less time and costs significantly less than auditing the entire network. Differences between network segmentation and VLAN By definition, network segmentation (subnetting) and VLAN sound pretty similar. After all, there’s a division of the main network into subnetworks or smaller networks. But besides the core similarities mentioned above, there are a few critical differences. Let’s dive into the differences between the two. The primary difference between the two subnets are layer 3 divisions, while VLANs are layer 2 divisions. As you may recall, networks are layer 1 (device), layer 2 (data link), layer 3 (IP, routers), and so on, up to layer 7 (application). TCP/IP is the newer framework with four layers only. So, when you divide a network at a data link, you need to adopt VLAN. With VLAN, several networks exist on the same physical network but may not be connected to the same fiber switch. In subnets, the division occurs at IP level. Thus, the independent subnets are assigned their IP addresses and communicate with others over layer 3. Besides this significant difference, there are other dissimilarities you should know. Here’s a table to help you understand: VLAN Subnet 1 Divides the network within the same physical network using logic. Divides the IP network into multiple IP networks 2 VLANs communicate with other devices within the same LAN The communication between the subnets is carried out over layer 3 3 It is configured at the switch side It is configured at IP level 4 VLAN divisions are software-based terminology since they’re divided logically. Subnets can be both hardware- of software-based 5 VLAN provides better network access and tend to be more stable Subnets offer limited control When to adopt a subnet? There are use cases when subnets are more suited, while there are cases when you’re better off with Virtual LANs. As per the definition, you need to adopt a subnet when dividing different networks at IP level. So, if you want to create multiple IP addresses for each partition, implement subnets. The subnets are essentially networks within a network with their own IP addresses. Thus, they divide the broadcast domain and improve speed and efficiency. Subnets are also the go-to segmentation method when you need to make the sub-networks available over layer 3 to the outside world. With appropriate access control lists, anyone with an internet connection would be able to access the subnets But subnetting is also used to prevent access to a particular subnet. For example, you may want to limit access to the company’s software codebase to anyone outside the development department. So, only network devices with approved IP addresses used by the developer network are approved to access the codebase. But there are two downsides to subnets you should know. The first one is increased time complexity. When dealing with a single network, three steps are in place to reach the Process (Source Host, Destination Network, and Process). In subnets, there’s an additional step involved (Source Host, Destination Network, Subnet, Process). This extra step increases time complexity, requiring more time for data transfer and connectivity. It also affects stability. Subnetting also increases the number of IP addresses required since each subnet requires its own IP address. This can become hard to manage over time. When to adopt VLAN? Virtual LANs are internal networks within the same physical network. They interact with one another, not with other devices on the same network or outside the world. Think of VLAN as a private wireless network at home. Your neighbors don’t have access to it, but everyone in your home has. If that sounds like your desired result, you should adopt VLAN. There are three types of VLANs (basic, extended, and tagged). In basic VLAN, you assign IDs to each switch port or PCI . Once assigned, you can’t change them. Extended VLAN has more functionalities like priority-based routing. Lastly, tagged VLAN enables you to create multiple VLANs with IEEE 802.1Q. The main advantages of different VLANs over subnet are speed and stability. Since endpoints do not have to resolve IP addresses every time, they tend to be faster. But there’s a significant disadvantage to VLANs: It’s easier to breach multiple partitions if there’s a malicious injection. Without proper network security controls, it is easier to exploit vulnerabilities using malware and ransomware , putting your entire network at risk. Having ACLs (access control lists) can help in such situations. Furthermore, there are issues arising out of physical store requirements. Connecting two segments in VLAN requires you to use routers and IoT. Routers are physical devices that take up space. The more segments you create, the more routers you need to use. Over time, management can become an issue. The bottom line Both subnets and VLANs are network segmentation approaches that improve security and workload management. It’s not a given that you can’t have both. Some companies benefit from the implementation of VLAN and subnets simultaneously. But there are specific times when IT service providers prefer one over the other. Consider your requirements to select the approach that’s right for you. Schedule a demo Related Articles Q1 at AlgoSec: What innovations and milestones defined our start to 2026? AlgoSec Reviews Mar 19, 2023 · 2 min read 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 Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... 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Cloud misconfigurations can cause devastating financial and reputational damage to organizations. Yet, such undesirable circumstances can... Cloud Security Top 5 Tips on Avoiding Cloud Misconfigurations 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 11/24/22 Published Cloud misconfigurations can cause devastating financial and reputational damage to organizations. Yet, such undesirable circumstances can be avoided by understanding common misconfiguration errors and mitigating them before malicious actors can exploit them. Ava Chawla, AlgoSec’s Global Head of Cloud Security provides some valuable insights on cloud misconfigurations and offers useful tips on how to avoid them It may come as a surprise to some, but did you know that misconfigurations were the #1 cause of cloud-security incidents in 2021 and were also responsible for 65-70% of cloud-security challenges in 2020? Cloud Misconfigurations: The Insidious yet Serious Threat Clearly, misconfigurations are a common cause of security loopholes. These security loopholes – usually the result of oversights, errors, or poor configuration choices by inexperienced or careless users – often result in cyberattacks and the exposure of mission-critical information. Most cloud environments are saturated with misconfigurations, with 99% of them going unseen. As a result, they become vulnerable to many cyberthreats, including malware, ransomware, and insider threats. Threat actors may also exploit the vulnerabilities caused by misconfigurations to access enterprise networks, compromise assets, or exfiltrate sensitive data. So why are cloud misconfigurations such a serious threat in cloud environments? And, how can your organization avoid these errors and keep your cloud environment safe from the bad guys? Jarring Data Breaches Resulting from Cloud Misconfigurations: More than Food for Thought In 2018 and 2019 , misconfigurations caused hundreds of data breaches that cost companies a whopping $5 trillion. Threat actors also took advantage of misconfigurations to attack many organizations in 2020. An exposed database is a perfect example of how misconfiguration errors like forgetting to password-protect critical cloud assets can create huge security risks for companies. In early 2020, a database belonging to cosmetics giant Estée Lauder that contained over 440 million records ended up online – all because it was not password-protected. How bad was this oversight? It allowed malicious actors to access its sensitive contents, such as email addresses, middleware records, references to internal documents, and information about company IP addresses and ports. And misconfiguration-related breaches didn’t stop in 2021. In May of that year, Cognyte left a database unsecured, leading to the online exposure of 5 billion records, including names, passwords, and email addresses. The incident is particularly ironic because Cognyte is a cyber-intelligence service that alerts users to potential data breaches. So how can your organization avoid suffering the same fates as Estée Lauder and Cognyte? By preventing misconfiguration errors. How to Eliminate Common Misconfiguration Errors? 1) One of the most common cloud misconfiguration errors is not implementing monitoring . A failure to monitor the cloud environment creates huge security risks because the organization can’t even know that there’s a threat, much less mitigate it. Solution: By integrating monitoring and logging tools into your entire cloud estate, you can keep an eye on all the activity happening within it. More importantly, you can identify suspicious or malicious actions, and act early to mitigate threats and prevent serious security incidents. An example of a monitoring tool is CloudTrail in the AWS Cloud. 2) The second-biggest misconfiguration risk stems from overly permissive access settings. Enterprise teams frequently forget to change the default settings or make the settings overly-permissive, resulting in critical assets being exposed to the Internet and to threat actors lurking in cyberspace. 3) Another misconfiguration mistake is mismanaging identity and access management (IAM) roles and permissions. Unrestricted access, particularly admin-level access, significantly increases the probability of breaches. The compromise of this user could allow a malicious actor to exploit the entire network and its sensitive data. 4) Mismanaged secrets are another common misconfiguration mistake that can lead to attacks and breaches. Secrets like passwords, API keys, encryption keys, and access tokens are the keys to your (cloud) kingdom, and their compromise or theft can severely damage your enterprise. Solution: You can avoid mistakes #2, #3 and #4 by granting least-privilege access (also known as the principle of least privilege) and implementing detailed security policies, standards, and procedures for IAM, secrets management, remote access, etc. 5) The fifth misconfiguration error is not patching vulnerabilities. Patch management pitfalls include pushing out updates too quickly and devices going offline. But the most significant risk when patch management doesn’t take place, not surprisingly, is leaving a system vulnerable to malicious actors. Solution: Proactively scanning your cloud environment is vital to find the vulnerabilities that can be exploited by threat actors to elevate their privileges in your network and execute remote attacks. Conclusion and Next Steps Cloud misconfigurations are the most common cause of security incidents in the cloud. Fortunately, most of them are avoidable. If you’ve found this action-packed guide a valuable read, then you’re on the right path to reaching a solution that includes protecting your most valuable assets, securing the connectivity of your most critical business applications, and streamlining the management of your entire multi cloud environment. Prevasio can help you get there faster. Schedule a demo Related Articles Q1 at AlgoSec: What innovations and milestones defined our start to 2026? AlgoSec Reviews Mar 19, 2023 · 2 min read 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? 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Webinars Migrate & modernize: Supercharging your Cisco Nexus refresh with ACI If you still have Cisco Nexus 7000 devices in your environment, surely you have been inundated with end-of-life warnings and next-gen messaging touting the benefits of upgrading to Nexus 9000 with Cisco ACI. We know, modernizing your infrastructure can be a real pain, but with change also comes opportunity! Find out in this session how to leverage your Nexus refresh to increase your efficiency and productivity, and reduce security concerns at the same time. AlgoSec’s Jeremiah Cornelius, along with Cisco’s Cynthia Broderick, will guide you on how to: Migrate your current Nexus flows to ACI using your preferred mode – network or application centric Remove vulnerabilities caused by human error via automation of network change processes. Instantly identify and remediate risk and compliance violations. June 9, 2021 Cynthia Broderick DC Networking, Business Development at Cisco Jeremiah Cornelius Technical Leader for Alliances and Partners at AlgoSec Relevant resources Modernize your network and harness the power of Nexus & Cisco ACI with AlgoSec Watch Video AlgoSec’s integration with Cisco ACI Watch Video Cisco & AlgoSec achieving application-driven security across your hybrid network 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

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How To Reduce Attack Surface: 6 Proven Tactics Security-oriented organizations continuously identify, monitor, and manage... Cyber Attacks & Incident Response How To Reduce Attack Surface: 6 Proven Tactics 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 12/20/23 Published How To Reduce Attack Surface: 6 Proven Tactics Security-oriented organizations continuously identify, monitor, and manage internet-connected assets to protect them from emerging attack vectors and potential vulnerabilities. Security teams go through every element of the organization’s security posture – from firewalls and cloud-hosted assets to endpoint devices and entry points – looking for opportunities to reduce security risks. This process is called attack surface management. It provides a comprehensive view into the organization’s cybersecurity posture, with a neatly organized list of entry points, vulnerabilities, and weaknesses that hackers could exploit in a cyberattack scenario. Attack surface reduction is an important element of any organization’s overall cybersecurity strategy. Security leaders who understand the organization’s weaknesses can invest resources into filling the most critical gaps first and worrying about low-priority threats later. What assets make up your organization’s attack surface? Your organization’s attack surface is a detailed list of every entry point and vulnerability that an attacker could exploit to gain unauthorized access. The more entry points your network has, the larger its attack surface will be. Most security leaders divide their attention between two broad types of attack surfaces: The digital attack surface This includes all network equipment and business assets used to transfer, store, and communicate information. It is susceptible to phishing attempts , malware risks, ransomware attacks, and data breaches. Cybercriminals may infiltrate these kinds of assets by bypassing technical security controls, compromising unsecured apps or APIs, or guessing weak passwords. The physical attack surface This includes business assets that employees, partners, and customers interact with physically. These might include hardware equipment located inside data centers and USB access points. Even access control systems for office buildings and other non-cyber threats may be included. These assets can play a role in attacks that involve social engineering, insider threats, and other malicious actors who work in-person. Even though both of these attack surfaces are distinct, many of their security vulnerabilities and potential entry points overlap in real-life threat scenarios. For example, thieves might steal laptops from an unsecured retail location and leverage sensitive data on those devices to launch further attacks against the organization’s digital assets. Organizations that take steps to minimize their attack surface area can reduce the risks associated with this kind of threat. Known Assets, Unknown Assets, and Rogue Assets All physical and digital business assets fall into one of three categories: Known assets are apps, devices, and systems that the security team has authorized to connect to the organization’s network. These assets are included in risk assessments and they are protected by robust security measures, like network segmentation and strict permissions. Unknown assets include systems and web applications that the security team is not aware of. These are not authorized to access the network and may represent a serious security threat. Shadow IT applications may be part of this category, as well as employee-owned mobile devices storing sensitive data and unsecured IoT devices. Rogue assets connect to the network without authorization, but they are known to security teams. These may include unauthorized user accounts, misconfigured assets, and unpatched software. A major part of properly managing your organization’s attack surface involves the identification and remediation of these risks. Attack Vectors Explained: Minimize Risk by Following Potential Attack Paths When conducting attack surface analysis, security teams have to carefully assess the way threat actors might discover and compromise the organization’s assets while carrying out their attack. This requires the team to combine elements of vulnerability management with risk management , working through the cyberattack kill chain the way a hacker might. Some cybercriminals leverage technical vulnerabilities in operating systems and app integrations. Others prefer to exploit poor identity access management policies, or trick privileged employees into giving up their authentication credentials. Many cyberattacks involve multiple steps carried out by different teams of threat actors. For example, one hacker may specialize in gaining initial access to secured networks while another focuses on using different tools to escalate privileges. To successfully reduce your organization’s attack surface, you must follow potential attacks through these steps and discover what their business impact might be. This will provide you with the insight you need to manage newly discovered vulnerabilities and protect business assets from cyberattack. Some examples of common attack vectors include: API vulnerabilities. APIs allow organizations to automate the transfer of data, including scripts and code, between different systems. Many APIs run on third-party servers managed by vendors who host and manage the software for customers. These interfaces can introduce vulnerabilities that internal security teams aren’t aware of, reducing visibility into the organization’s attack surface. Unsecured software plugins. Plugins are optional add-ons that enhance existing apps by providing new features or functionalities. They are usually made by third-party developers who may require customers to send them data from internal systems. If this transfer is not secured, hackers may intercept it and use that information to attack the system. Unpatched software. Software developers continuously release security patches that address emerging threats and vulnerabilities. However, not all users implement these patches the moment they are released. This delay gives attackers a key opportunity to learn about the vulnerability (which is as easy as reading the patch changelog) and exploit it before the patch is installed. Misconfigured security tools. Authentication systems, firewalls, and other security tools must be properly configured in order to produce optimal security benefits. Attackers who discover misconfigurations can exploit those weaknesses to gain entry to the network. Insider threats. This is one of the most common attack vectors, yet it can be the hardest to detect. Any employee entrusted with sensitive data could accidentally send it to the wrong person, resulting in a data breach. Malicious insiders may take steps to cover their tracks, using their privileged permissions and knowledge of the organization to go unnoticed. 6 Tactics for Reducing Your Attack Surface 1. Implement Zero Trust The Zero Trust security model assumes that data breaches are inevitable and may even have already occurred. This adds new layers to the problems that attack surface management resolves, but it can dramatically improve overall resilience and preparedness. When you develop your security policies using the Zero Trust framework, you impose strong limits on what hackers can and cannot do after gaining initial access to your network. Zero Trust architecture blocks attackers from conducting lateral movement, escalating their privileges, and breaching critical data. For example, IoT devices are a common entry point into many networks because they don’t typically benefit from the same level of security that on-premises workstations receive. At the same time, many apps and systems are configured to automatically trust connections from internet-enabled sensors and peripheral devices. Under a Zero Trust framework, these connections would require additional authentication. The systems they connect to would also need to authenticate themselves before receiving data. Multi-factor authentication is another part of the Zero Trust framework that can dramatically improve operational security. Without this kind of authentication in place, most systems have to accept that anyone with the right username and password combination must be a legitimate user. In a compromised credential scenario, this is obviously not the case. Organizations that develop network infrastructure with Zero Trust principles in place are able to reduce the number of entry points their organization exposes to attackers and reduce the value of those entry points. If hackers do compromise parts of the network, they will be unable to quickly move between different segments of the network, and may be unable to stay unnoticed for long. 2. Remove Unnecessary Complexity Unknown assets are one of the main barriers to operational security excellence. Security teams can’t effectively protect systems, apps, and users they don’t have detailed information on. Any rogue or unknown assets the organization is responsible for are almost certainly attractive entry points for hackers. Arbitrarily complex systems can be very difficult to document and inventory properly . This is a particularly challenging problem for security leaders working for large enterprises that grow through acquisitions. Managing a large portfolio of acquired companies can be incredibly complex, especially when every individual company has its own security systems, tools, and policies to take into account. Security leaders generally don’t have the authority to consolidate complex systems on their own. However, you can reduce complexity and simplify security controls throughout the environment in several key ways: Reduce the organization’s dependence on legacy systems. End-of-life systems that no longer receive maintenance and support should be replaced with modern equivalents quickly. Group assets, users, and systems together. Security groups should be assigned on the basis of least privileged access, so that every user only has the minimum permissions necessary to achieve their tasks. Centralize access control management. Ad-hoc access control management quickly leads to unknown vulnerabilities and weaknesses popping up unannounced. Implement a robust identity access management system so you can create identity-based policies for managing user access. 3. Perform Continuous Vulnerability Monitoring Your organization’s attack surface is constantly changing. New threats are emerging, old ones are getting patched, and your IT environment is supporting new users and assets on a daily basis. Being able to continuously monitor these changes is one of the most important aspects of Zero Trust architecture . The tools you use to support attack surface management should also generate alerts when assets get exposed to known risks. They should allow you to confirm the remediation of detected risks, and provide ample information about the risks they uncover. Some of the things you can do to make this happen include: Investing in a continuous vulnerability monitoring solution. Vulnerability scans are useful for finding out where your organization stands at any given moment. Scheduling these scans to occur at regular intervals allows you to build a standardized process for vulnerability monitoring and remediation. Building a transparent network designed for visibility. Your network should not obscure important security details from you. Unfortunately, this is what many third-party security tools and services achieve. Make sure both you and your third-party security partners are invested in building observability into every aspect of your network. Prioritize security expenditure based on risk. Once you can observe the way users, data, and assets interact on the network, you can begin prioritizing security initiatives based on their business impact. This allows you to focus on high-risk tasks first. 4. Use Network Segmentation to Your Advantage Network segmentation is critical to the Zero Trust framework. When your organization’s different subnetworks are separated from one another with strictly protected boundaries, it’s much harder for attackers to travel laterally through the network. Limiting access between parts of the network helps streamline security processes while reducing risk. There are several ways you can segment your network. Most organizations already perform some degree of segmentation by encrypting highly classified data. Others enforce network segmentation principles when differentiating between production and live development environments. But in order for organizations to truly benefit from network segmentation, security leaders must carefully define boundaries between every segment and enforce authentication policies designed for each boundary. This requires in-depth knowledge of the business roles and functions of the users who access those segments, and the ability to configure security tools to inspect and enforce access control rules. For example, any firewall can block traffic between two network segments. A next-generation firewall can conduct identity-based inspection that allows traffic from authorized users through – even if they are using mobile devices the firewall has never seen before. 5. Implement a Strong Encryption Policy Encryption policies are an important element of many different compliance frameworks . HIPAA, PCI-DSS, and many other regulatory frameworks specify particular encryption policies that organizations must follow to be compliant. These standards are based on the latest research in cryptographic security and threat intelligence reports that outline hackers’ capabilities. Even if your organization is not actively seeking regulatory compliance, you should use these frameworks as a starting point for building your own encryption policy. Your organization’s risk profile is largely the same whether you seek regulatory certification or not – and accidentally deploying outdated encryption policies can introduce preventable vulnerabilities into an otherwise strong security posture. Your organization’s encryption policy should detail every type of data that should be encrypted and the cipher suite you’ll use to encrypt that data. This will necessarily include critical assets like customer financial data and employee payroll records, but it also includes relatively low-impact assets like public Wi-Fi connections at retail stores. In each case, you must implement a modern cipher suite that meets your organization’s security needs and replace legacy devices that do not support the latest encryption algorithms. This is particularly important in retail and office settings, where hardware routers, printers, and other devices may no longer support secure encryption. 6. Invest in Employee Training To truly build security resilience into any company culture, it’s critical to explain why these policies must be followed, and what kinds of threats they address. One of the best ways to administer standardized security compliance training is by leveraging a corporate learning platform across the organization, so that employees can actually internalize these security policies through scenario based training courses. It’s especially valuable in organizations suffering from consistent shadow IT usage. When employees understand the security vulnerabilities that shadow IT introduces into the environment, they’re far less likely to ignore security policies for the sake of convenience. Security simulations and awareness campaigns can have a significant impact on training initiatives. When employees know how to identify threat actors at work, they are much less likely to fall victim to them. However, actually achieving meaningful improvement may require devoting a great deal of time and energy into phishing simulation exercises over time – not everyone is going to get it right in the first month or two. These initiatives can also provide clear insight and data on how prepared your employees are overall. This data can make a valuable contribution to your attack surface reduction campaign. You may be able to pinpoint departments – or even individual users – who need additional resources and support to improve their resilience against phishing and social engineering attacks. Successfully managing this aspect of your risk assessment strategy will make it much harder for hackers to gain control of privileged administrative accounts. Schedule a demo Related Articles Q1 at AlgoSec: What innovations and milestones defined our start to 2026? AlgoSec Reviews Mar 19, 2023 · 2 min read 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? 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Firewall monitoring is an important part of maintaining strict network security. Every firewall device has an important role to play... Firewall Policy Management 10 Best Firewall Monitoring Software for Network Security Asher Benbenisty 2 min read Asher Benbenisty Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 10/24/23 Published Firewall monitoring is an important part of maintaining strict network security. Every firewall device has an important role to play protecting the network, and unexpected flaws or downtime can put the entire network at risk. Firewall monitoring solutions provide much-needed visibility into the status and behavior of your network firewall setup. They make the security of your IT infrastructure observable, enabling you to efficiently deploy resources towards managing and securing traffic flows. This is especially important in environments with multiple firewall hardware providers, where you may need to verify firewalls, routers, load balancers, and more from a central interface. What is the role of Firewall Monitoring Software? Every firewall in your network is a checkpoint that verifies traffic according to your security policy. Firewall monitoring software assesses the performance and reports the status of each firewall in the network. This is important because a flawed or defective firewall can’t do its job properly. In a complex enterprise IT environment, dedicating valuable resources to manually verifying firewalls isn’t feasible. The organization may have hardware firewalls from Juniper or Cisco, software firewalls from Check Point, and additional built-in operating system firewalls included with Microsoft Windows. Manually verifying each one would be a costly and time-consuming workflow that prevents limited security talent from taking on more critical tasks. Additionally, admins would have to wait for individual results from each firewall in the network. In the meantime, the network would be exposed to vulnerabilities that exploit faulty firewall configurations. Firewall monitoring software solves this problem using automation . By compressing all the relevant data from every firewall in the network into a single interface, analysts and admins can immediately detect security threats that compromise firewall security. The Top 10 Firewall Monitoring Tools Right Now 1. AlgoSec AlgoSec enables security teams to visualize and manage complex hybrid networks . It uses a holistic approach to provide instant visibility to the entire network’s security configuration, including cloud and on-premises infrastructure. This provides a single pane of glass that lets security administrators preview policies before enacting them and troubleshoot issues in real-time. 2. Wireshark Wireshark is a widely used network protocol analyzer. It can capture and display the data traveling back and forth on a network in real-time. While it’s not a firewall-specific tool, it’s invaluable for diagnosing network issues and understanding traffic patterns. As an open-source tool, anyone can download WireShark for free and immediately start using it to analyze data packets. 3. PRTG Network Monitor PRTG is known for its user-friendly interface and comprehensive monitoring capabilities. It supports SNMP and other monitoring methods, making it suitable for firewall monitoring. Although it is an extensible and customizable solution, it requires purchasing a dedicated on-premises server. 4. SolarWinds Firewall Security Manager SolarWinds offers a suite of network management tools, and their Firewall Security Manager is specifically designed for firewall monitoring and management. It helps with firewall rule analysis, change management, and security policy optimization. It is a highly configurable enterprise technology that provides centralized incident management features. However, deploying SolarWinds can be complex, and the solution requires specific on-premises hardware to function. 5. FireMon FireMon is a firewall management and analysis platform. It provides real-time visibility into firewall rules and configurations, helping organizations ensure that their firewall policies are compliant and effective. FireMon minimizes security risks related to policy misconfigurations, extending policy management to include multiple security tools, including firewalls. 6. ManageEngine ManageEngine’s OpManager offers IT infrastructure management solutions, including firewall log analysis and reporting. It can help you track and analyze traffic patterns, detect anomalies, and generate compliance reports. It is intuitive and easy to use, but only supports monitoring devices across multiple networks with its higher-tier Enterprise Edition. It also requires the installation of on-premises hardware. 7. Tufin Tufin SecureTrack is a comprehensive firewall monitoring and management solution. It provides real-time monitoring, change tracking, and compliance reporting for firewalls and other network devices. It can automatically discover network assets and provide comprehensive information on network assets, but may require additional configuration to effectively monitor complex enterprise networks. 8. Cisco Firepower Management Center If you’re using Cisco firewalls, the Firepower Management Center offers centralized management and monitoring capabilities. It provides insights into network traffic, threats, and policy enforcement. Cisco simplifies network management and firewall monitoring by offering an intuitive centralized interface that lets admins control Cisco firewall devices directly. 9. Symantec Symantec (now part of Broadcom) offers firewall appliances with built-in monitoring and reporting features. These appliances are known for providing comprehensive coverage to endpoints like desktop workstations, laptops, and mobile devices. Symantec also provides some visibility into firewall configurations, but it is not a dedicated service built for this purpose. 10. Fortinet Fortinet’s FortiAnalyzer is designed to work with Fortinet’s FortiGate firewalls. It provides centralized logging, reporting, and analysis of network traffic and security events. This provides customers with end-to-end visibility into emerging threats on their networks and even includes useful security automation tools. It’s relatively easy to deploy, but integrating it with a complex set of firewalls may take some time. Benefits of Firewall Monitoring Software Enhanced Security Your firewalls are your first line of defense against cyberattacks, preventing malicious entities from infiltrating your network. Threat actors know this, and many sophisticated attacks start with attempts to disable firewalls or overload them with distributed denial of service (DDoS) attacks. Without a firewall monitoring solution in place, you may not be aware such an attack is happening until it’s too late. Even if your firewalls are successfully defending against the attack, your detection and response team should be ready to start mitigating risk the moment the attack is launched. Traffic Control Firewalls can add strain and latency to network traffic. This is especially true of software firewalls, which have to draw computing resources from the servers they protect. Over time, network congestion can become an expensive obstacle to growth, creating bottlenecks that reduce the efficiency of every device on the network. Improperly implemented firewalls can play a major role in these bottlenecks because they have to verify every data packet transferred through them. With firewall monitoring, system administrators can assess the impact of firewall performance on network traffic and use that data to more effectively balance network loads. Organizations can reduce overhead by rerouting data flows and finding low-cost storage options for data they don’t constantly need access to. Real-time Alerts If attackers manage to break through your defenses and disable your firewall, you will want to know immediately. Part of having a strong security posture is building a multi-layered security strategy. Your detection and response team will need real-time updates on the progress of active cyberattacks. They will use this information to free the resources necessary to protect the organization and mitigate risk. Organizations that don’t have real-time firewall monitoring in place won’t know if their firewalls fail against an ongoing attack. This can lead to a situation where the CSIRT team is forced to act without clear knowledge about what they’re facing. Performance Monitoring Poor network performance can have a profound impact on the profitability of an enterprise-sized organization. Drops in network quality cost organizations more than half a million dollars per year , on average. Misconfigured firewalls can contribute to poor network performance if left unaddressed while the organization grows and expands its network. Properly monitoring the performance of the network requires also monitoring the performance of the firewalls that protect it. System administrators should know if overly restrictive firewall policies prevent legitimate users from accessing the data they need. Policy Enforcement Firewall monitoring helps ensure security policies are implemented and enforced in a standardized way throughout the organization. They can help discover the threat of shadow IT networks made by users communicating outside company-approved devices and applications. This helps prevent costly security breaches caused by negligence. Advanced firewall monitoring solutions can also help security leaders create, save, and update policies using templates. The best of these solutions enable security teams to preview policy changes and research elaborate “what-if” scenarios, and update their core templates accordingly. Selecting the Right Network Monitoring Software When considering a firewall monitoring service, enterprise security leaders should evaluate their choice based on the following features: Scalability Ensure the software can grow with your network to accommodate future needs. Ideally, both your firewall setup and the monitoring service responsible for it can grow at the same pace as your organization. Pay close attention to the way the organization itself is likely to grow over time. A large government agency may require a different approach to scalability than an acquisition-oriented enterprise with many separate businesses under its umbrella. Customizability Look for software that allows you to tailor security rules to your specific requirements. Every organization is unique. The appropriate firewall configuration for your organization may be completely different than the one your closest competitor needs. Copying configurations and templates between organizations won’t always work. Your network monitoring solution should be able to deliver performance insights fine-tuned to your organization’s real needs. If there are gaps in your monitoring capabilities, there are probably going to be gaps in your security posture as well. Integration Compatibility with your existing network infrastructure is essential for seamless operation. This is another area where every organization is unique. It’s very rare for two organizations to use the same hardware and software tools, and even then there may be process-related differences that can become obstacles to easy integration. Your organization’s ideal firewall monitoring solution should provide built-in support for the majority of the security tools the organization uses. If there are additional tools or services that aren’t supported, you should feel comfortable with the process of creating a custom integration without too much difficulty. Reporting Comprehensive reporting features provide insights into network activity and threats. It should generate reports that fit the formats your analysts are used to working with. If the learning curve for adopting a new technology is too high, achieving buy-in will be difficult. The best network monitoring solutions provide a wide range of reports into every aspect of network and firewall performance. Observability is one of the main drivers of value in this kind of implementation, and security leaders have no reason to accept compromises here. AlgoSec for Real-time Network Traffic Analysis Real-time network traffic monitoring reduces security risks and enables faster, more significant performance improvements at enterprise scale. Security professionals and network engineers need access to clear, high-quality insight on data flows and network performance, and AlgoSec delivers. One way AlgoSec deepens the value of network monitoring is through the ability to connect applications directly to security policy rules . When combined with real-time alerts, this provides deep visibility into the entire network while reducing the need to conduct time-consuming manual queries when suspicious behaviors or sub-optimal traffic flows are detected. Firewall Monitoring Software: FAQs How Does Firewall Monitoring Software Work? These software solutions manage firewalls so they can identify malicious traffic flows more effectively. They connect multiple hardware and software firewalls to one another through a centralized interface. Administrators can gather information on firewall performance, preview or change policies, and generate comprehensive reports directly. This enables firewalls to detect more sophisticated malware threats without requiring the deployment of additional hardware. How often should I update my firewall monitoring software? Regular updates are vital to stay protected against evolving threats. When your firewall vendor releases an update, it often includes critical security data on the latest emerging threats as well as patches for known vulnerabilities. Without these updates, your firewalls may become vulnerable to exploits that are otherwise entirely preventable. The same is true for all software, but it’s especially important for firewalls. Can firewall monitoring software prevent all cyberattacks? While highly effective, no single security solution is infallible. Organizations should focus on combining firewall monitoring software with other security measures to create a multi-layered security posture. If threat actors successfully disable or bypass your firewalls, your detection and response team should receive a real-time notification and immediately begin mitigating cyberattack risk. Is open-source firewall monitoring software a good choice? Open-source options can be cost-effective, but they may require more technical expertise to configure and maintain. This is especially true for firewall deployments that rely on highly customized configurations. Open-source architecture can make sense in some cases, but may present challenges to scalability and the affordability of hiring specialist talent later on. How do I ensure my firewall doesn’t block legitimate traffic? Regularly review and adjust your firewall rules to avoid false positives. Sophisticated firewall solutions include features for reducing false positives, while simpler firewalls are often unable to distinguish genuine traffic from malicious traffic. Advanced firewall monitoring services can help you optimize your firewall deployment to reduce false positives without compromising security. How does firewall monitoring enhance overall network security? Firewalls can address many security threats, from distributed denial of service (DDoS) attacks to highly technical cross-site scripting attacks. The most sophisticated firewalls can even block credential-based attacks by examining outgoing content for signs of data exfiltration. Firewall monitoring allows security leaders to see these processes in action and collect data on them, paving the way towards continuous security improvement and compliance. What is the role of VPN audits in network security? Advanced firewalls are capable of identifying VPN connections and enforcing rules specific to VPN traffic. However, firewalls are not generally capable of decrypting VPN traffic, which means they must look for evidence of malicious behavior outside the data packet itself. Firewall monitoring tools can audit VPN connections to determine if they are harmless or malicious in nature, and enforce rules for protecting enterprise assets against cybercriminals equipped with secure VPNs . What are network device management best practices? Centralizing the management of network devices is the best way to ensure optimal network performance in a rapid, precise way. Organizations that neglect to centralize firewall and network device management have to manually interact with increasingly complex fleets of network hardware, software applications, and endpoint devices. This makes it incredibly difficult to make changes when needed, and increases the risks associated with poor change management when they happen. What are the metrics and notifications that matter most for firewall monitoring? Some of the important parameters to pay attention to include the volume of connections from new or unknown IP addresses, the amount of bandwidth used by the organization’s firewalls, and the number of active sessions on at any given time. Port information is especially relevant because so many firewall rules specify actions based on the destination port of incoming traffic. Additionally, network administrators will want to know how quickly they receive notifications about firewall issues and how long it takes to resolve those issues. What is the role of bandwidth and vulnerability monitoring? Bandwidth monitoring allows system administrators to find out which users and hosts consume the most bandwidth, and how network bandwidth is shared among various protocols. This helps track network performance and provides visibility into security threats that exploit bandwidth issues. Denial of service (DoS) attacks are a common cyberattack that weaponizes network bandwidth. What’s the difference between on-premises vs. cloud-based firewall monitoring? Cloud-based firewall monitoring uses software applications deployed as cloud-enabled services while on-premises solutions are physical hardware solutions. Physical solutions must be manually connected to every device on the network, while cloud-based firewall monitoring solutions can automatically discover assets and IT infrastructure immediately after being deployed. What is the role of configuration management? Updating firewall configurations is an important part of maintaining a resilient security posture. Organizations that fail to systematically execute configuration changes on all assets on the network run the risk of forgetting updates or losing track of complex policies and rules. Automated firewall monitoring solutions allow admins to manage configurations more effectively while optimizing change management. What are some best practices for troubleshooting network issues? Monitoring tools offer much-needed visibility to IT professionals who need to address network problems. These tools help IT teams narrow down the potential issues and focus their time and effort on the most likely issues first. Simple Network Management Protocol (SNMP) monitoring uses a client-server application model to collect information running on network devices. This provides comprehensive data about network devices and allows for automatic discovery of assets on the network. What’s the role of firewall monitoring in Windows environments? Microsoft Windows includes simple firewall functionality in its operating system platform, but it is best-suited to personal use cases on individual endpoints. Organizations need a more robust solution for configuring and enforcing strict security rules, and a more comprehensive way to monitor Windows-based networks as a whole. Platforms like AlgoSec help provide in-depth visibility into the security posture of Windows environments. How do firewall monitoring tools integrate with cloud services? Firewall monitoring tools provide observability to cloud-based storage and computing services like AWS and Azure. Cloud-native monitoring solutions can ingest network traffic coming to and from public cloud providers and make that data available for security analysts. Enterprise security teams achieve this by leveraging APIs to automate the transfer of network performance data from the cloud provider’s infrastructure to their own monitoring platform. What are some common security threats and cyberattacks that firewalls can help mitigate? Since firewalls inspect every packet of data traveling through the network perimeter, they play a critical role detecting and mitigating many different threats and attacks. Simple firewalls can block unsophisticated denial-of-service (DoS) attacks and detect known malware variants. Next-generation firewalls can prevent data breaches by conducting deep packet analysis, identifying compromised applications and user accounts, and even blocking sensitive data from leaving the network altogether. What is the importance of network segmentation and IP address management? Network segmentation protects organizations from catastrophic data breaches by ensuring that even successful cyberattacks are limited in scope. If attackers compromise one part of the network, they will not necessarily have access to every other part. Security teams achieve segmentation in part by effectively managing network IP addresses according to a robust security policy and verifying the effects of policy changes using monitoring software. Schedule a demo Related Articles Q1 at AlgoSec: What innovations and milestones defined our start to 2026? AlgoSec Reviews Mar 19, 2023 · 2 min read 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 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 cloud's come a long way, baby. Remember when it was just a buzzword tossed around in boardrooms? Now, it's the engine powering our... Cloud Network Security The shocking truth about Network Cloud Security in 2025 Iris Stein 2 min read Iris Stein 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 2/10/25 Published The cloud's come a long way, baby. Remember when it was just a buzzword tossed around in boardrooms? Now, it's the engine powering our digital world. But this rapid evolution has left many cloud network security managers grappling with a new reality – and a bit of an identity crisis. Feeling the heat? You're not alone. The demands on cloud security professionals are skyrocketing. We're expected to be masters of hybrid environments, navigate a widening skills gap, and stay ahead of threats evolving at warp speed. Let's break down the challenges: Hybrid is the new normal: Gartner predicts that by 2025, a whopping 90% of organizations will be running hybrid cloud environments. This means juggling the complexities of both on-premises and cloud security, demanding a broader skillset and a more holistic approach. Forget silos – we need to be fluent in both worlds. The skills gap is a chasm: (ISC)²'s 2022 Cybersecurity Workforce Study revealed a global cybersecurity workforce gap of 3.4 million. This talent shortage puts immense pressure on existing security professionals to do more with less. We're stretched thin, and something's gotta give. Threats are evolving faster than ever: The cloud introduces new attack vectors and vulnerabilities we haven't even imagined yet. McAfee reported a staggering 630% increase in cloud-native attacks in 2022. Staying ahead of these threats requires constant vigilance, continuous learning, and a proactive mindset. Level up your cloud security game So, how can you thrive in this chaotic environment and ensure your career (and your company's security posture) doesn't go down in flames? Here's your survival guide: Automate or die: Manual processes are a relic of the past. Embrace automation tools to manage complex security policies, respond to threats faster, and free up your time for strategic initiatives. Think of it as your force multiplier in the fight against complexity. Become a cloud-native ninja: Deepen your understanding of cloud platforms like AWS, Azure, and GCP. Master their security features, best practices, and quirks. The more you know, the more you can protect. Sharpen your soft skills: Technical chops alone won't cut it. Communication, collaboration, and problem-solving are critical. You need to clearly articulate security risks to stakeholders, build bridges with different teams, and drive solutions. Never stop learning: The cloud is a moving target. Continuous learning is no longer optional – it's essential. Attend conferences, devour online courses, and stay informed about the latest security trends and technologies. Complacency is the enemy. Introducing AlgoSec Cloud Enterprise (ACE): Your cloud security wingman Let's face it, managing security across a hybrid cloud environment can feel like herding cats. That's where AlgoSec Cloud Enterprise (ACE) steps in. ACE is a comprehensive cloud network security suite that gives you the visibility, automation, and control you need to secure your applications and keep the business humming. Gain X-Ray Vision into Your Hybrid Cloud: See everything, know everything. ACE gives you complete visibility across your entire environment, from on-premises servers to cloud platforms. No more blind spots, no more surprises. Enforce Security Policies Like a Boss: Consistent security policies are the bedrock of a strong security posture. ACE makes it easy to define and enforce policies across all your applications, no matter where they reside. Conquer Compliance with Confidence: Staying compliant can feel like a never-ending struggle. ACE simplifies compliance management across your hybrid environment, helping you meet regulatory requirements without breaking a sweat. Accelerate App Delivery Without Sacrificing Security: In today's fast-paced world, speed is key. ACE empowers you to accelerate application delivery without compromising security. Move fast, break things – but not your security posture. Proactive Risk Prevention: ACE goes beyond basic security checks with over 150+ network security policy risk checks, proactively identifying and mitigating potential vulnerabilities before they can be exploited. Ready to unlock the true power of the cloud while fortifying your defenses? Learn more about AlgoSec Cloud Enterprise today and take control of your cloud security destiny. Schedule a demo Related Articles Q1 at AlgoSec: What innovations and milestones defined our start to 2026? AlgoSec Reviews Mar 19, 2023 · 2 min read 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 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

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Webinars Firewall Rule Recertification - An Application-Centric Approach As part of your organization’s security policy management best practices, firewall rules must be reviewed and recertified regularly to ensure security, compliance and optimal firewall performance. Firewall rules which are out of date, unused or unnecessary should be removed, as firewall bloat creates gaps in your security posture, causes compliance violations, and impacts firewall performance. Manual firewall rule recertification, however, is an error-prone and time-consuming process. Please join our webinar by Asher Benbenisty, AlgoSec’s Director of Product Marketing, who will introduce an application-centric approach to firewall recertification, bringing a new, efficient, effective and automated method of recertifying firewall rules. The webinar will: Why it is important to regularly review and recertify your firewall rules The application-centric approach to firewall rule recertification How to automatically manage the rule-recertification process Want to find out more about the importance of ruleset hygiene? Watch this webinar today! Asher Benbenisty Director of product marketing Relevant resources Tips for Firewall Rule Recertification Watch Video Firewall Rule Recertification Read Document 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