The fusion of Cloud and AI is more than just a technological advancement; it’s a paradigm shift. As businesses harness the combined power of these transformative technologies, the importance of a security-centric approach becomes increasingly evident. This exploration delves deeper into the strategic significance of navigating the Cloud-AI nexus with a focus on security and innovation. Cloud and AI: catalysts for business transformation The cloud provides the foundational infrastructure,... Hybrid Cloud Security Management The confluence of cloud and AI: charting a secure path in the age of intelligent innovation 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. Tags Share this article 9/20/23 Published The fusion of Cloud and AI is more than just a technological advancement; it’s a paradigm shift. As businesses harness the combined power of these transformative technologies, the importance of a security-centric approach becomes increasingly evident. This exploration delves deeper into the strategic significance of navigating the Cloud-AI nexus with a focus on security and innovation. Cloud and AI: catalysts for business transformation The cloud provides the foundational infrastructure, while AI infuses intelligence, making systems smarter and more responsive. Together, they’re reshaping industries, driving efficiencies, and creating new business models. However, with these opportunities come challenges. Ensuring robust security in this intertwined environment is not just a technical necessity but a strategic imperative. As AI algorithms process vast datasets in the cloud, businesses must prioritize the protection and integrity of this data to build and maintain trust. Building trust in intelligent systems In the age of AI, data isn’t just processed; it’s interpreted, analyzed, and acted upon. This autonomous decision-making demands a higher level of trust. Ensuring the confidentiality, integrity, and availability of data in the cloud becomes paramount. Beyond just data protection, it’s about ensuring that AI-driven decisions, which can have real-world implications, are made based on secure and untampered data. This trust forms the bedrock of AI’s value proposition in the cloud. Leadership in the Cloud-AI era Modern leaders are not just visionaries; they’re also gatekeepers. They stand at the intersection of innovation and security, ensuring that as their organizations harness AI in the cloud, ethical considerations and security protocols are front and center. This dual role is challenging but essential. As AI-driven applications become integral to business operations, leaders must champion a culture where security and innovation coexist harmoniously. Seamless integration and the role of DevSecOps Developing AI applications in the cloud is a complex endeavor. It requires a seamless integration of development, operations, and crucially, security. Enter DevSecOps. This approach ensures that security is embedded at every stage of the development lifecycle. From training AI models to deploying them in cloud environments, security considerations are integral, ensuring that the innovations are both groundbreaking and grounded in security. Collaborative security for collective intelligence AI’s strength lies in its ability to derive insights from vast datasets. In the interconnected world of the cloud, data flows seamlessly across boundaries, making collaborative security vital. Protecting this collective intelligence requires a unified approach, where security protocols are integrated across platforms, tools, and teams. Future-proofing the Cloud-AI strategy The technological horizon is ever-evolving. The fusion of Cloud and AI is just the beginning, and as businesses look ahead, embedding security into their strategies is non-negotiable. It’s about ensuring that as new technologies emerge and integrate with existing systems, the foundation remains secure and resilient. AlgoSec’s unique value proposition At AlgoSec, we understand the intricacies of the Cloud-AI landscape. Our application-based approach ensures that businesses have complete visibility into their digital assets. With AlgoSec, organizations gain a clear view of their application connectivity, ensuring that security policies align with business processes. As AI integrates deeper into cloud strategies, AlgoSec’s solutions empower businesses to innovate confidently, backed by a robust security framework. Our platform provides holistic, business-level visibility across the entire network infrastructure. With features like AlgoSec Horizon AppViz and AppChange, businesses can seamlessly identify network security vulnerabilities, plan migrations, accelerate troubleshooting, and adhere to the highest compliance standards. By taking an application-centric approach to security policy management, AlgoSec bridges the gap between IT teams and application delivery teams, fostering collaboration and ensuring a heightened security posture. 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

Best practices for network security governance in AWS and hybrid network environments Webinars Cessation of Misconfigurations: Common Network Misconfiguration Risks & How to Avoid Them Avivi Siman-Tov, AlgoSec’s Director of Product | February 18, 2020 Misconfigurations aren’t simply inconvenient mistakes but serious security threats. According to Gartner, 99% of all firewall breaches will be caused by misconfigurations by 2020 and misconfigurations made OWASP’s list of Top 10 most critical web application security risks. A single change to a network device can have far-reaching effects on your business and create security holes for cybercriminals, impact your audits, and cause costly outages that bring your business to a standstill. In this webinar, Avivi Siman-Tov, AlgoSec’s Director of Product, will show examples of common misconfigurations, including device changes, business application connectivity changes, and data center migrations. He will also reveal specific techniques to help you avoid them. Watch the webinar to learn how to: Understand and map your entire network before you make a change Proactively assess the impact of a change to ensure it does not break connectivity, affect compliance or create a security hole and understand the impact of changes to your entire network Maximize the capabilities of network management automation to avoid common misconfigurations Avoid common mistakes when making changes to your network security devices February 18, 2020 Avivi Siman Tov Director of Product Relevant resources Firewall Rule Recertification - An Application-Centric Approach Keep Reading Securing & managing hybrid network security See Documentation Application first cloud security See Documentation 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

Learn best practices to secure your cloud environment and deliver applications securely Webinars State of Ransomware: Caught between perception and reality Ransomware continues to be a major problem—and the problem is only getting worse. An exclusive ExtraHop 2022 survey conducted with over 500 security and IT decision makers provided some sobering responses: 85% of those surveyed reported suffering at least one ransomware attack while an alarming 74% have experienced multiple attacks. Yet most IT decision makers (77%) are confident in their ability to prevent or mitigate all cybersecurity threats, including ransomware. In this webinar, we take an in-depth look into the implications of this alarming trend and provide a turnkey strategy that organizations can implement today to safeguard their most critical data stored in their business applications and increase their level of ransomware preparedness. Join us for: * In-depth analysis of infamous ransomware attacks * Ways to identify and remediate vulnerabilities at the application level * A practical application centric approach that can support your pre-existing security measures * Mitigation measures to consider at the onset of your next ransomware attack * Ransomware future trends predictions January 24, 2023 Eric Jeffery Regional Sales Engineer Relevant resources Reducing risk of ransomware attacks - back to basics Keep Reading Fighting Ransomware - CTO Roundtable Insights Keep Reading Ransomware Attack: Best practices to help organizations proactively prevent, contain and 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

In today’s dynamic digital landscape, the security of hybrid networks has taken center stage. As organizations increasingly adopt cloud solutions, like Azure, the complexities of securing hybrid networks have grown significantly. In this blog post, we’ll provide an overview of the key products and solutions presented in the recent webinar with Microsoft, highlighting how they address these challenges. Azure Firewall: Key features Azure Firewall, a cloud-native firewall offers robust features... Hybrid Cloud Security Management Hybrid network security: Azure Firewall and AlgoSec solutions Joseph Hallman 2 min read Joseph Hallman 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 10/30/23 Published In today’s dynamic digital landscape, the security of hybrid networks has taken center stage. As organizations increasingly adopt cloud solutions, like Azure, the complexities of securing hybrid networks have grown significantly. In this blog post, we’ll provide an overview of the key products and solutions presented in the recent webinar with Microsoft, highlighting how they address these challenges. Azure Firewall: Key features Azure Firewall, a cloud-native firewall offers robust features and benefits. It boasts high availability, auto-scalability, and requires minimal maintenance. Key capabilities include: Filtering and securing both network and application traffic. Support for source NAT and destination NAT configurations. Built-in threat intelligence to identify and block suspicious traffic. Three SKUs catering to different customer needs, with the Premium SKU offering advanced security features. Premium features encompass deep packet inspection, intrusion detection and prevention, web content filtering, and filtering based on web categories. Azure Firewall seamlessly integrates with other Azure services like DDoS protection, API gateway, private endpoints, and Sentinel for security correlation and alerting. AlgoSec: Simplifying hybrid network security AlgoSec specializes in simplifying hybrid network security. Their solutions address challenges such as managing multiple applications across multiple cloud platforms. AlgoSec’s offerings include: Visibility into application connectivity. Risk assessment across hybrid environments. Intelligent automation for efficient and secure network changes. CloudFlow: Managing cloud security policies AlgoSec Cloud, a SaaS solution, centralizes the management of security policies across various cloud platforms. Key features include: A security rating system to identify high-risk Risk assessment for assets Identification of unused rules Detailed policy visibility A powerful traffic simulation query tool to analyze traffic routes and rule effectiveness. Risk-aware change automation to identify potential risks associated with network changes. Integration with Azure Cloudflow seamlessly integrates with Azure, extending support to Azure Firewall and network security groups. It enables in-depth analysis of security risks and policies within Azure subscriptions. AlgoSec's cloud security capabilities deliver synergistic advantages, enhancing security and compliance features. Conclusion In the ever-evolving landscape of hybrid networks, Azure Firewall and AlgoSec Cloudflow are powerful allies. Azure Firewall provides robust security for Azure customers, while Cloudflow offers a comprehensive approach to managing security policies across diverse cloud platforms. These solutions empower organizations to master hybrid network security, ensuring the security and efficiency of their applications and services. Resources- View the on-demand webinar here – Understanding your hybrid network security- with AlgoSec and Microsoft Azure.mp4 – AlgoSec 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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In this webinar, Omer Ganot, AlgoSec’s Cloud Security Product Manager, and Stuti Deshpande s, Amazon Web Service’s Partner Solutions Architect, will share security challenges in the hybrid cloud and provide tips to protect your AWS and hybrid environment Webinars Overcoming hybrid environment management challenges | AWS & AlgoSec Webinar Public clouds such as Amazon Web Services (AWS) are a critical part of your hybrid network. It is important to keep out the bad guys (including untrusted insiders) and proactively secure your entire hybrid network. Securing your network is both the responsibility of the cloud providers, as well as your organization’s IT and CISOs – the shared responsibility model. As a result, your organization needs visibility into what needs to be protected, as well as an understanding of the tools that are available to keep them secure. In this webinar, Omer Ganot, AlgoSec’s Cloud Security Product Manager, and Stuti Deshpande’s, Amazon Web Service’s Partner Solutions Architect, will share security challenges in the hybrid cloud and provide tips to protect your AWS and hybrid environment, including how to: Securely migrate workloads from on-prem to public cloud Gain unified visibility into your network topology and traffic flows, including both public cloud and on-premises assets, from a single console. Manage/orchestrate multiple layers of security controls and proactively detect misconfigurations Protect your data, accounts, and workloads from misconfiguration risks Protect web applications in AWS by filtering traffic and blocking common attack patterns, such as SQL injection or cross-site scripting Gain a unified view of your compliance status and achieve continuous compliance September 30, 2020 Stuti Deshpande Partner Solution Architect, AWS Omer Ganot Product Manager Relevant resources Migrating Business Applications to AWS? Tips on Where to Start Keep Reading Tips for auditing your AWS security policies, the right way 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

What is Firewall Traffic Analysis? Firewall traffic analysis (FTA) is a network security operation that grants visibility into the data packets that travel through your network’s firewalls. Cybersecurity professionals conduct firewall traffic analysis as part of wider network traffic analysis (NTA) workflows. The traffic monitoring data they gain provides deep visibility into how attacks can penetrate your network and what kind of damage threat actors can do once they succeed. NTA vs. FTA... Firewall Policy Management Firewall Traffic Analysis: The Complete Guide 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 What is Firewall Traffic Analysis? Firewall traffic analysis (FTA) is a network security operation that grants visibility into the data packets that travel through your network’s firewalls. Cybersecurity professionals conduct firewall traffic analysis as part of wider network traffic analysis (NTA) workflows. The traffic monitoring data they gain provides deep visibility into how attacks can penetrate your network and what kind of damage threat actors can do once they succeed. NTA vs. FTA Explained NTA tools provide visibility into things like internal traffic inside the data center, inbound VPN traffic from external users, and bandwidth metrics from Internet of Things (iOT) endpoints. They inspect on-premises devices like routers and switches, usually through a unified, vendor-agnostic interface. Network traffic analyzers do inspect firewalls, but might stop short of firewall-specific network monitoring and management. FTA tools focus more exclusively on traffic patterns through the organization’s firewalls. They provide detailed information on how firewall rules interact with traffic from different sources. This kind of tool might tell you how a specific Cisco firewall conducts deep packet inspection on a certain IP address, and provide broader metrics on how your firewalls operate overall. It may also provide change management tools designed to help you optimize firewall rules and security policies . Firewall Rules Overview Your firewalls can only protect against security threats effectively when they are equipped with an optimized set of rules. These rules determine which users are allowed to access network assets and what kind of network activity is allowed. They play a major role in enforcing network segmentation and enabling efficient network management. Analyzing device policies for an enterprise network is a complex and time-consuming task. Minor mistakes can lead to critical risks remaining undetected and expose network devices to cyberattacks. For this reason, many security leaders use automated risk management solutions that include firewall traffic analysis. These tools perform a comprehensive analysis of firewall rules and communicate the risks of specific rules across every device on the network. This information is important because it will inform the choices you make during real-time traffic analysis. Having a comprehensive view of your security risk profile allows you to make meaningful changes to your security posture as you analyze firewall traffic. Performing Real-Time Traffic Analysis AlgoSec Horizon Security Analyzer captures information on the following traffic types: External IP addresses Internal IP addresses (public and private, including NAT addresses) Protocols (like TCP/IP, SMTP, HTTP, and others) Port numbers and applications for sources and destinations Incoming and outgoing traffic Potential intrusions The platform also supports real-time network traffic analysis and monitoring. When activated, it will periodically inspect network devices for changes to their policy rules, object definitions, audit logs, and more. You can view the changes detected for individual devices and groups, and filter the results to find specific network activities according to different parameters. For any detected change, Horizon Security Analyzer immediately aggregates the following data points: Device – The device where the changes happened. Date/Time – The exact time when the change was made. Changed by – Tells you which administrator performed the change. Summary – Lists the network assets impacted by the change. Many devices supported by Horizon Security Analyzer are actually systems of devices that work together. You can visualize the relationships between these assets using the device tree format. This presents every device as a node in the tree, giving you an easy way to manage and view data for individual nodes, parents nodes, and global categories. For example, Horizon Security Analyzer might discover a redundant rule copied across every firewall in your network. If its analysis shows that the rule triggers frequently, it might recommend moving to a higher node on the device tree. If it turns out the rule never triggers, it may recommend adjusting the rule or deleting it completely. If the rule doesn’t trigger because it conflicts with another firewall rule, it’s clear that some action is needed. Importance of Visualization and Reporting Open source network analysis tools typically work through a command-line interface or a very simple graphic user interface. Most of the data you can collect through these tools must be processed separately before being communicated to non-technical stakeholders. High-performance firewall analysis tools like AlgoSec Horizon Security Analyzer provide additional support for custom visualizations and reports directly through the platform. Visualization allows non-technical stakeholders to immediately grasp the importance of optimizing firewall policies, conducting netflow analysis, and improving the organization’s security posture against emerging threats. For security leaders reporting to board members and external stakeholders, this can dramatically transform the success of security initiatives. AlgoSec Horizon Security Analyzer includes a Visualize tab that allows users to create custom data visualizations. You can save these visualizations individually or combine them into a dashboard. Some of the data sources you can use to create visualizations include: Interactive searches Saved searches Other saved visualizations Traffic Analysis Metrics and Reports Custom visualizations enhance reports by enabling non-technical audiences to understand complex network traffic metrics without the need for additional interpretation. Metrics like speed, bandwidth usage, packet loss, and latency provide in-depth information about the reliability and security of the network. Analyzing these metrics allows network administrators to proactively address performance bottlenecks, network issues, and security misconfigurations. This helps the organization’s leaders understand the network’s capabilities and identify the areas that need improvement. For example, an organization that is planning to migrate to the cloud must know whether its current network infrastructure can support that migration. The only way to guarantee this is by carefully measuring network performance and proactively mitigating security risks. Network traffic analysis tools should do more than measure simple metrics like latency. They need to combine latency into complex performance indicators that show how much latency is occuring, and how network conditions impact those metrics. That might include measuring the variation in delay between individual data packets (jitter), Packet Delay Variation (PDV), and others. With the right automated firewall analysis tool, these metrics can help you identify and address security vulnerabilities as well. For example, you could automate the platform to trigger alerts when certain metrics fall outside safe operating parameters. Exploring AlgoSec’s Network Traffic Analysis Tool AlgoSec Horizon Security Analyzer provides a wide range of operations and optimizations to security teams operating in complex environments. It enables firewall performance improvements and produces custom reports with rich visualizations demonstrating the value of its optimizations. Some of the operations that Horizon Security Analyzer supports include: Device analysis and change tracking reports. Gain in-depth data on device policies, traffic, rules, and objects. It analyzes the routing table that produces a connectivity diagram illustrating changes from previous reports on every device covered. Traffic and routing queries. Run traffic simulations on specific devices and groups to find out how firewall rules interact in specific scenarios. Troubleshoot issues that emerge and use the data collected to prevent disruptions to real-world traffic. This allows for seamless server IP migration and security validation. Compliance verification and reporting. Explore the policy and change history of individual devices, groups, and global categories. Generate custom reports that meet the requirements of corporate regulatory standards like Sarbanes-Oxley, HIPAA, PCI DSS, and others. Rule cleanup and auditing. Identify firewall rules that are either unused, timed out, disabled, or redundant. Safely remove rules that fail to improve your security posture, improving the efficiency of your firewall devices. List unused rules, rules that don’t conform to company policy, and more. Horizon Security Analyzer can even re-order rules automatically, increasing device performance while retaining policy logic. User notifications and alerts. Discover when unexpected changes are made and find out how those changes were made. Monitor devices for rule changes and send emails to pre-assigned users with device analyses and reports. Network Traffic Analysis for Threat Detection and Response By monitoring and inspecting network traffic patterns, firewall analysis tools can help security teams quickly detect and respond to threats. Layer on additional technologies like Intrusion Detection Systems (IDS), Network Detection and Response (NDR), and Threat Intelligence feeds to transform network analysis into a proactive detection and response solution. IDS solutions can examine packet headers, usage statistics, and protocol data flows to find out when suspicious activity is taking place. Network sensors may monitor traffic that passes through specific routers or switches, or host-based intrusion detection systems may monitor traffic from within a host on the network. NDR solutions use a combination of analytical techniques to identify security threats without relying on known attack signatures. They continuously monitor and analyze network traffic data to establish a baseline of normal network activity. NDR tools alert security teams when new activity deviates too far from the baseline. Threat intelligence feeds provide live insight on the indicators associated with emerging threats. This allows security teams to associate observed network activities with known threats as they develop in real-time. The best threat intelligence feeds filter out the huge volume of superfluous threat data that doesn’t pertain to the organization in question. Firewall Traffic Analysis in Specific Environments On-Premises vs. Cloud-hosted Environments Firewall traffic analyzers exist in both on-premises and cloud-based forms. As more organizations migrate business-critical processes to the cloud, having a truly cloud-native network analysis tool is increasingly important. The best of these tools allow security teams to measure the performance of both on-premises and cloud-hosted network devices, gathering information from physical devices, software platforms, and the infrastructure that connects them. Securing the Internet of Things It’s also important that firewall traffic analysis tools take Internet of Things (IoT) devices in consideration. These should be grouped separately from other network assets and furnished with firewall rules that strictly segment them. Ideally, if threat actors compromise one or more IoT devices, network segmentation won’t allow the attack to spread to other parts of the network. Conducting firewall analysis and continuously auditing firewall rules ensures that the barriers between network segments remain viable even if peripheral assets (like IoT devices) are compromised. Microsoft Windows Environments Organizations that rely on extensive Microsoft Windows deployments need to augment the built-in security capabilities that Windows provides. On its own, Windows does not offer the kind of in-depth security or visibility that organizations need. Firewall traffic analysis can play a major role helping IT decision-makers deploy technologies that improve the security of their Windows-based systems. Troubleshooting and Forensic Analysis Firewall analysis can provide detailed information into the causes of network problems, enabling IT professionals to respond to network issues more quickly. There are a few ways network administrators can do this: Analyzing firewall logs. Log data provides a wealth of information on who connects to network assets. These logs can help network administrators identify performance bottlenecks and security vulnerabilities that would otherwise go unnoticed. Investigating cyberattacks. When threat actors successfully breach network assets, they can leave behind valuable data. Firewall analysis can help pinpoint the vulnerabilities they exploited, providing security teams with the data they need to prevent future attacks. Conducting forensic analysis on known threats. Network traffic analysis can help security teams track down ransomware and malware attacks. An organization can only commit resources to closing its security gaps after a security professional maps out the killchain used by threat actors to compromise network assets. Key Integrations Firewall analysis tools provide maximum value when integrated with other security tools into a coherent, unified platform. Security information and event management (SIEM) tools allow you to orchestrate network traffic analysis automations with machine learning-enabled workflows to enable near-instant detection and response. Deploying SIEM capabilities in this context allows you to correlate data from different sources and draw logs from devices across every corner of the organization – including its firewalls. By integrating this data into a unified, centrally managed system, security professionals can gain real-time information on security threats as they emerge. AlgoSec’s Horizon Security Analyzer integrates seamlessly with leading SIEM solutions, allowing security teams to monitor, share, and update firewall configurations while enriching security event data with insights gleaned from firewall logs. Horizon Security Analyzer uses a REST API to transmit and receive data from SIEM platforms, allowing organizations to program automation into their firewall workflows and manage their deployments from their SIEM. 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 state of hybrid and multi-cloud security policy management Download PDF Download PDF Add a Title Add a Title Add a Title 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

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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So we’ve made it to the last part of our blog series on PCI 3.0 Requirement 1. The first two posts covered Requirement 1.1... Auditing and Compliance Avoid the Traps: What You Need to Know About PCI Requirement 1 (Part 3) Matthew Pascucci 2 min read Matthew Pascucci Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 9/9/14 Published So we’ve made it to the last part of our blog series on PCI 3.0 Requirement 1. The first two posts covered Requirement 1.1 (appropriate firewall and router configurations) and 1.2 (restrict connections between untrusted networks and any system components in the cardholder data environment) and in this final post we’ll discuss key requirements of Requirements 1.3 -1.5 and I’ll again give you my insight to help you understand the implications of these requirements and how to comply with them. Implement a DMZ to limit inbound traffic to only system components that provide authorized publicly accessible services, protocols, and ports (1.3.1.): The DMZ is used to publish services such as HTTP and HTTPS to the internet and allow external entities to access these services. But the key point here is that you don’t need to open every port on the DMZ. This requirement verifies that a company has a DMZ implemented and that inbound activity is limited to only the required protocols and ports. Limit inbound Internet traffic to IP addresses within the DMZ (1.3.2): This is a similar requirement to 1.3.1, however instead of looking for protocols, the requirement focuses on the IPs that the protocol is able to access. In this case, just because you might need HTTP open to a web server, doesn’t mean that all systems should have external port 80 open to inbound traffic. Do not allow any direct connections inbound or outbound for traffic between the Internet and the cardholder data environment (1.3.3): This requirement verifies that there isn’t unfiltered access, either going into the CDE or leaving it, which means that all traffic that traverses this network must pass through a firewall. All unwanted traffic should be blocked and all allowed traffic should be permitted based on an explicit source/destination/protocol. There should never be a time that someone can enter or leave the CDE without first being inspected by a firewall of some type. Implement anti-spoofing measures to detect and block forged source IP addresses from entering the network (1.3.4): In an attempt to bypass your firewall, cyber attackers will try and spoof packets using the internal IP range of your network to make it look like the request originated internally. Enabling the IP spoofing feature on your firewall will help prevent these types of attacks. Do not allow unauthorized outbound traffic from the cardholder data environment to the Internet (1.3.5): Similar to 1.3.3, this requirement assumes that you don’t have direct outbound access to the internet without a firewall. However in the event that a system has filtered egress access to the internet the QSA will want to understand why this access is needed, and whether there are controls in place to ensure that sensitive data cannot be transmitted outbound. Implement stateful inspection, also known as dynamic packet filtering (1.3.6): If you’re running a modern firewall this feature is most likely already configured by default. With stateful inspection, the firewall maintains a state table which includes all the connections that traverse the firewall, and it knows if there’s a valid response from the current connection. It is used to stop attackers from trying to trick a firewall into initiating a request that didn’t previously exist. Place system components that store cardholder data (such as a database) in an internal network zone, segregated from the DMZ and other untrusted networks (1.3.7): Attackers are looking for your card holder database. Therefore, it shouldn’t be stored within the DMZ. The DMZ should be considered an untrusted network and segregated from the rest of the network. By having the database on the internal network provides another layer of protection against unwanted access. [Also see my suggestions for designing and securing you DMZ in my previous blog series: The Ideal Network Security Perimeter Design: Examining the DMZ Do not disclose private IP addresses and routing information to unauthorized parties (1.3.8): There should be methods in place to prevent your internal IP address scheme from being leaked outside your company. Attackers are looking for any information on how to breach your network, and giving them your internal address scheme is just one less thing they need to learn. You can stop this by using NAT, proxy servers, etc. to limit what can be seen from the outside. Install personal firewall software on any mobile and/or employee-owned devices that connect to the Internet when outside the network (for example, laptops used by employees), and which are also used to access the network (1.4): Mobile devices, such as laptops, that can connect to both the internal network and externally, should have a personal firewall configured with rules that prevent malicious software or attackers from communicating with the device. These firewalls need to be configured so that their rulebase can never be stopped or changed by anyone other than an administrator. Ensure that security policies and operational procedures for managing firewalls are documented, in use, and known to all affected parties (1.5): There needs to be a unified policy regarding firewall maintenance including how maintenance procedures are performed, who has access to the firewall and when maintenance is scheduled. Well, that’s it! Hopefully, my posts have given you a better insight into what is actually required in Requirement 1 and what you need to do to comply with it. 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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Zero trust vs micro segmentation Select a size Which network Can AlgoSec be used for continuous compliance monitoring? Yes, AlgoSec supports continuous compliance monitoring. As organizations adapt their security policies to meet emerging threats and address new vulnerabilities, they must constantly verify these changes against the compliance frameworks they subscribe to. AlgoSec can generate risk assessment reports and conduct internal audits on-demand, allowing compliance officers to monitor compliance performance in real-time. Security professionals can also use AlgoSec to preview and simulate proposed changes to the organization’s security policies. This gives compliance officers a valuable degree of lead-time before planned changes impact regulatory guidelines and allows for continuous real-time monitoring. Microsegmentation Zero Trust: How Microsegmentation Drives Zero Trust Success Microsegmentation zero trust is the practice of enforcing zero trust principles through fine‑grained, application‑aware segmentation at the workload and service level. Companies today are turning to microsegmentation, a granular form of network segmentation, to contain attacks quickly, prove least‑privilege access, and simplify compliance across hybrid environments. Despite still having to spend an average of $4.4 million per breach, according to IBM's Cost of a Data Breach Report 2025 , this is 9% lower than 2024. That drop ties directly to faster identification and containment—outcomes microsegmentation accelerates by limiting lateral movement and shrinking the blast radius from the first indicator of compromise. In yet another study, Verizon’s 2025 Data Breach Investigations Report , more than 12,000 confirmed breaches demonstrated how multi-stage intrusions use lateral movement, which microsegmentation technology directly addresses. Meanwhile, the Payment Card Industry Data Security Standard (PCI DSS) requires network segmentation for system scope reduction, which leads to decreased audit work and better system isolation. Taken together, these findings underscore a simple point: Organizations need application‑aware controls—specifically microsegmentation—to stop attackers from moving between systems and to operationalize zero trust. This article discusses the zero trust vs. micro‑segmentation debate, explains how zero trust and microsegmentation in fact work together, and provides a path to design, enforce, and operate this approach. What Is Microsegmentation? Microsegmentation divides networks into small, secure domains that match workload requirements and user/service identities with explicit allow‑rules to stop lateral movement. Network security today benefits from application-based boundaries, i.e., policies applied where applications actually communicate—not just subnets and VLANS. In practice, that means protecting individual workloads and the communication between them across data centers, public clouds, containers, and endpoints—rather than vaguely “protecting components” or “locations.” What Is the Difference Between Traditional (Macro) and Micro-Segmentation This comparison comes down to a difference in approach: Macro-segmentation uses broad VLANs and subnets or DMZs to divide network tiers; while this provides limited east-west control, it is simpler to design. Micro-segmentation uses SDN and host agents, as well as cloud security groups; application-specific policies are enforced at the workload/service boundary, which is why they are the engine of microsegmentation zero trust. What Role Do Firewalls and Network Segmentation Layers Play in Microsegmentation? Your existing perimeter and internal firewalls provide north‑south control, compliance zones, and enforcement points that microsegmentation can orchestrate. In other words, microsegmentation complements firewalls and network segmentation layers—it does not replace them. Extending the point above: Microsegmentation orchestrates those firewall and segmentation layers to deploy least‑privilege across hybrid systems—specifically: Cloud security groups NACLs SDN fabrics Kubernetes policies Host-based controls Since these layers are complementary, they collectively shrink the blast radius. What Is Zero Trust? Zero trust is a security concept, not a product or service. The system uses identity-based dynamic authorization, which takes into account device health status and environmental context—instead of traditional static location-based access methods. Verification is continuous because environments and risk conditions evolve. Zero trust verifies every access decision—no implicit trust—and enforces least privilege Zero Trust vs. Micro‑Segmentation: Complementary Forces While zero trust operates as an operational framework, microsegmentation functions as an implementation methodology. While zero trust explains what needs protection and which aspects require protection, microsegmentation provides the how. The table below breaks down the two concepts across key parameters. Aspect Zero Trust (Strategy) Microsegmentation (Mechanism) Focus Identity, posture, continuous verification Allowed app/workload flows Scope Enterprise‑wide architecture App tiers, services, identities Enforcement Policies derived from context and risk SDN, host agents, security groups, firewalls Outcome Minimized implicit trust; provable least‑privilege Contained blast radius; fewer lateral‑movement paths What Is Microsegmentation Zero Trust? The combination of zero trust and microsegmentation forms microsegmentation zero trust—a strategy connected to enforcement. The three primary goals of this approach are: Risk reduction Lateral movement prevention Least privilege verification Microsegmentation zero trust applies zero trust principles—continuous verification and least privilege—by defining and enforcing explicit, application‑aware allow‑rules between identities, services, and workloads. Why Does Microsegmentation Zero Trust Matter? It matters because it measurably reduces lateral movement paths and speeds incident containment. Authorized paths are explicitly permitted communication flows (service A to service B on port X from an approved identity) that have been validated as necessary for the application to function. Pre‑defining and testing these authorized paths speeds deployment because changes ship with pre-validated, least‑privilege policies—reducing last‑minute firewall rework, minimizing approvals, and preventing rollback from unexpected blocks. Implementing Microsegmentation to Achieve Zero Trust Microsegmentation is a continuous process, consisting of multiple stages to successfully achieve zero trust. Asset & Dependency Discovery Start by analyzing the network traffic behavior of applications and workloads in traditional on-premises setups, public clouds, and container environments. This application-first view serves as the base for zero trust segmentation, which stops security gaps from occurring. Policy Creation Create allow‑lists for individual app components and identity groups based on observed application traffic flows (sources/destinations, ports, processes) and documented business requirements, then validate with “what‑if” simulations before production. Enforcement Implement the approved policy through current controls—cloud security groups, firewalls, SDN fabrics, host controls, and Kubernetes—to achieve uniform protection across hybrid and multi-cloud systems. Continuous Monitoring & Adaptive Policy Continuously monitor for drift, prune unused rules, and adjust policies using detection data—without re‑introducing broad implicit trust or “allow any” access. Challenges & Pitfalls to Avoid Security organizations that operate effectively still encounter various obstacles when implementing microsegmentation: Lack of visibility in application maps: When third-party or SaaS endpoints and ephemeral services (containers, serverless functions) are not properly documented, visibility suffers. The fix? Run continuous dependency discovery operations while keeping tags and labels up to date. Focusing solely on network-based controls: Ignoring workload and identity context can weaken your security measures. The fix? Use service accounts, workload identities, namespaces, and labels as the basis for policy connections whenever possible. Relying on a single technology: Depending only on firewalls or security groups can create gaps in your security posture. The fix? Implement security orchestration using a combination of firewalls, SDN security groups, and Kubernetes network policies. Manual exception handling: Human intervention creates delays, slowing down release cycles. The fix? Orchestrate a combination of controls—next‑gen firewalls, SDN fabrics, cloud security groups, and Kubernetes network policy—so each layer covers the others. AlgoSec's Microsegmentation‑Driven Zero Trust Platform In today's fast-paced digital landscape, the combination of speed and safety is not just important—it's imperative. Zero Trust security delivered by AlgoSec’s unified platform enables companies to successfully implement microsegmentation across data centers, clouds, and Kubernetes. The platform begins with an application-first method, allowing users to clearly see their workloads and intricate patterns. AlgoSec provides immediate connectivity between different environments—on-premises systems, public clouds, and containers—to detect lateral movement paths and compliance issues fast. Beyond basic observability, AlgoSec maps security policy to business applications and services so that teams can simulate proposed changes, quantify risk in business terms, and validate least‑privilege before anything reaches production.. This proactive method validates the least privilege principle, protecting against security breaches and outages. AlgoSec integrates with next-generation firewalls, SDN fabrics and cloud security groups, and Kubernetes to enforce the same intent everywhere, orchestrating changes so rules remain consistent across hybrid and multi‑cloud environments. To see microsegmentation zero trust in action with AlgoSec, schedule a demo today. Get the latest insights from the 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