Best Firewall Software of 2026

ThreatLocker is a Zero Trust security platform that stops cyber threats by allowing only approved applications and activity to run. It removes standing admin rights, enforces least privilege, and gives organizations precise control over software behavior. With capabilities like application control, ringfencing, and device and storage restrictions, it prevents ransomware, zero day exploits, and unauthorized actions before they can execute. Purpose built for IT and security teams, ThreatLocker offers centralized management and full visibility across endpoints, users, and applications. It helps shrink the attack surface, restrict lateral movement, and meet compliance requirements with detailed auditing. Quick to deploy and easy to manage, the platform includes a large maintained application library and simplified approval workflows, enabling stronger security with less operational burden while keeping the business running smoothly.

Imunify360 provides security solutions for web-hosting servers. Imunify360 is more than antivirus and WAF. It combines an Intrusion Prevention & Detection system with an Application Specific Web Application Firewall, Real time Antivirus protection, and Patch Management components into one security suite. Imunify360 is fully automated and displays all statistics in an intuitive dashboard.

Heimdal® Endpoint Detection and Response is our proprietary multi-solution service providing unique prevention, threat-hunting, and remediation capabilities. It combines the most advanced threat-hunting technologies in existence: Heimdal Next-Gen Antivirus, Heimdal Privileged Access Management, Heimdal Application Control, Heimdal Ransomware Encryption Protection, Heimdal Patch & Asset Management, and Heimdal Threat Prevention. With 6 modules working together seamlessly under one convenient roof, all within one agent and one platform, Heimdal Endpoint Detection and Response grants you access to all the essential cybersecurity layers your business needs to protect itself against both known and unknown online and insider threats. Our state-of-the-art product empowers you to quickly and effortlessly respond to sophisticated malware with stunning accuracy, protecting your digital assets and your reputation in the process as well.

ZoneAlarm for Business offers comprehensive, advanced, and flexible solutions for unmanaged businesses such as small businesses, Telco’s, government municipalities, and other businesses with little to no IT resources available. With its easy deployment and maintenance, ZoneAlarm for Business offers you Check Point’s vigorous multi-platform protection and support, made simple. ZoneAlarm Extreme Security NextGen is the comprehensive, ultimate PC and mobile security solution for all your business security needs, using Check Point’s cutting-edge enterprise-grade technology. Next-gen antivirus with award-winning Anti-Ransomware, advanced phishing protection, and secure browsing experience. Our advanced cyber security solutions use business-class protection to secure millions of home users’ PCs and mobile devices against the latest worldwide cyber threats. This powerful weapon is extremely effective at spotting malicious files and cyberattacks that evade traditional antiviruses.

Zscaler, the innovator behind the Zero Trust Exchange platform, leverages the world's largest security cloud to streamline business operations and enhance adaptability in a rapidly changing environment. The Zscaler Zero Trust Exchange facilitates swift and secure connections, empowering employees to work from any location by utilizing the internet as their corporate network. Adhering to the zero trust principle of least-privileged access, it delivers robust security through context-driven identity verification and policy enforcement. With a presence in 150 data centers globally, the Zero Trust Exchange ensures proximity to users while being integrated with the cloud services and applications they utilize, such as Microsoft 365 and AWS. This infrastructure guarantees the most efficient connection paths between users and their target destinations, ultimately offering extensive security alongside an exceptional user experience. Additionally, we invite you to explore our complimentary service, Internet Threat Exposure Analysis, which is designed to be quick, secure, and private for all users. This analysis can help organizations identify vulnerabilities and strengthen their security posture effectively.

Multilayered endpoint security utilizing behavior-based analysis offers robust defenses against both familiar and emerging threats. It provides complete real-time oversight of your entire software inventory, regardless of location. The FortiClient endpoint protection service, tailored for small and medium enterprises, is delivered via the cloud. This cohesive endpoint protection platform delivers automated next-generation threat defense, granting visibility and control over your software and hardware assets within the broader security framework. It enables the identification and remediation of vulnerable or compromised systems throughout your attack surface. As an integral component of the Fortinet Security Fabric, FortiClient connects endpoints to enhance early detection and prevention of sophisticated threats. Security events, including zero-day malware attacks, botnet identifications, and detected vulnerabilities, are communicated instantly. With its comprehensive approach, this solution not only safeguards your assets but also streamlines security management.

Our offerings deliver your security systems with unparalleled, comprehensive visibility into your network infrastructure. This capability is essential for keeping up with the ever-growing speed and complexity of networks, while also equipping you with the insights necessary to effectively identify and address breaches, leading to swift recovery. By adopting Network Critical solutions, you can enhance the performance of your current security system, thereby boosting your return on investment. To begin with, SPAN ports have long been recognized as an inadequate solution for network security. Hackers can easily compromise routers, switches, and entire networks without being detected, demonstrating a significant flaw in this approach. Additionally, SPAN ports fail to provide real-time information, which further undermines your network's security. In contrast, Network TAPs serve as a transparent portal, allowing you to monitor data in real-time without any alterations. This fundamental difference is crucial for maintaining a robust security posture against evolving threats. As organizations increasingly rely on real-time analytics, the advantages of using Network TAPs over SPAN become even more pronounced.

Avast Small Business Solutions deliver next-gen endpoint protection for business Windows PCs, Mac, and Windows servers that you can manage anywhere via a web browser. Go about your business knowing you are backed by effective cybersecurity built for small companies. Control your IT security from anywhere, powered by the cloud, advanced AI, and a global threat detection network. Avast Small Business Solutions consist of: * Avast Essential Business Security helps deliver device security for small businesses that want remote visibility and centrally controlled protection against viruses, phishing, ransomware, and advanced cyberattacks.  * Avast Premium Business Security combines our next-gen antivirus with VPN and USB control to help your employees and their devices stay more private and safer online, as well as offline.  * Avast Ultimate Business Security includes our award-winning next-gen antivirus with online privacy tools and patch management automation software to help keep your devices, data, and applications updated and secure.

Achieve extensive security for both on-premises and multi-cloud environments with the integrated firewall designed for cloud operations. The seamless, cloud-based Advanced Threat Protection system identifies and prevents sophisticated threats, such as zero-day vulnerabilities and ransomware assaults. With the support of a worldwide threat intelligence network that gathers data from millions of sources, you can quickly shield yourself from the latest dangers. Today's cyber threats, including ransomware, advanced persistent threats, and targeted attacks, necessitate increasingly advanced defense strategies that effectively balance precise threat detection with swift reaction capabilities. The Barracuda CloudGen Firewall provides an all-encompassing suite of next-generation firewall features to guarantee immediate network defense against a vast array of risks, weaknesses, and exploits, encompassing SQL injections, cross-site scripting, denial of service intrusions, trojans, malware, worms, spyware, and much more. By leveraging these advanced technologies, organizations can significantly enhance their resilience against evolving cyber threats and ensure the integrity of their data.

Akamai Cloud (previously known as Linode) provides a next-generation distributed cloud platform built for performance, portability, and scalability. It allows developers to deploy and manage cloud-native applications globally through a robust suite of services including Essential Compute, Managed Databases, Kubernetes Engine, and Object Storage. Designed to lower cloud spend, Akamai offers flat pricing, predictable billing, and reduced egress costs without compromising on power or flexibility. Businesses can access GPU-accelerated instances to drive AI, ML, and media workloads with unmatched efficiency. Its edge-first infrastructure ensures ultra-low latency, enabling applications to deliver exceptional user experiences across continents. Akamai Cloud’s architecture emphasizes portability—helping organizations avoid vendor lock-in by supporting open technologies and multi-cloud interoperability. Comprehensive support and developer-focused tools simplify migration, application optimization, and scaling. Whether for startups or enterprises, Akamai Cloud delivers global reach and superior performance for modern workloads.

Arista NG Firewall delivers comprehensive network security tailored for organizations seeking simplified management and robust protection. Its modular, software-driven design provides an intuitive browser interface that enables quick visibility into traffic patterns, user activity, and network health through database-driven reports and real-time alerts. The firewall protects against malware, phishing, ransomware, and other cyber threats while managing encrypted web requests, rogue applications, and spam. NG Firewall also supports VPN connectivity and application-based bandwidth shaping to ensure optimal performance for remote workers, branch offices, and guest Wi-Fi. Integration with ETM Dashboard allows centralized management, zero-touch provisioning, and easy policy deployment across multiple appliances. The solution supports deployment on dedicated hardware, virtual machines, or cloud platforms such as AWS and Azure, providing flexibility to meet diverse IT environments. Additional apps simplify configuration backups and offer expert support to maintain network uptime. This combination of security, visibility, and control makes NG Firewall ideal for organizations aiming to secure their networks efficiently and cost-effectively.

Fortinet stands out as a prominent global entity in the realm of cybersecurity, recognized for its all-encompassing and cohesive strategy aimed at protecting digital infrastructures, devices, and applications. Established in the year 2000, the company offers an extensive array of products and services, which encompass firewalls, endpoint security, intrusion prevention systems, and secure access solutions. Central to its offerings is the Fortinet Security Fabric, a holistic platform that effectively melds various security tools to provide enhanced visibility, automation, and real-time intelligence regarding threats across the entire network. With a reputation for reliability among businesses, governmental bodies, and service providers across the globe, Fortinet places a strong emphasis on innovation, scalability, and performance, thereby ensuring a resilient defense against the ever-evolving landscape of cyber threats. Moreover, Fortinet’s commitment to facilitating digital transformation and maintaining business continuity further underscores its role as a pivotal player in the cybersecurity industry.

DDoS attacks can overwhelm bandwidth, exhaust network resources, and interfere with application services. Is your infrastructure capable of withstanding such threats? The Advanced Firewall Manager proactively addresses network dangers before they can impact vital data center assets. It integrates application setup with network security protocols to ensure stricter compliance. By detecting and neutralizing threats related to network, protocols, and DNS, it safeguards essential data center resources before any damage occurs. Additionally, it accommodates SNMP, SIP, DNS, and IPFIX collectors while shielding log servers from overload. Tailored defenses designed for data center protection are enhanced by insights from F5 threat intelligence. Gain a deeper understanding of data center traffic trends through customizable analytics and reports. With F5 iRules, you can counteract complex zero-day vulnerabilities or collect essential forensic data. This comprehensive approach not only secures your network infrastructure but also protects mobile users from various attack vectors, including DDoS. Ultimately, ensuring robust defense mechanisms is crucial in today's rapidly evolving threat landscape.

Sophos UTM elevates threat prevention to unprecedented heights. At the core of Sophos Sandstorm is an advanced deep learning neural network, a sophisticated type of machine learning that effectively identifies both familiar and unfamiliar malware without depending on traditional signatures. Notably, Sophos UTM 9.4 stands out as one of the pioneering products to incorporate our state-of-the-art next-gen cloud sandboxing technology. Sandstorm significantly enhances protection against ransomware and targeted attacks while providing comprehensive visibility and analytical capabilities. It swiftly and accurately detects evasive threats before they infiltrate your network. Furthermore, it delivers exceptional value by offering enterprise-quality protection without the burden of exorbitant costs or complexities. You can fortify your web servers and Microsoft Enterprise Applications against cyber threats while ensuring secure access for external users through reverse proxy authentication. Additionally, our unique all-in-one solution guarantees complete SMTP and POP message protection from spam, phishing attempts, and data breaches, enhancing your overall cybersecurity posture. Ultimately, Sophos UTM equips businesses with robust tools to safeguard their digital assets effectively.

Azure Firewall serves as a cloud-managed network security solution designed to safeguard your Azure Virtual Network assets. This service operates as a fully stateful firewall, ensuring both high availability and scalable performance in the cloud environment. It is a comprehensive network security tool that not only protects your resources but also allows for the creation, enforcement, and logging of connectivity policies across various subscriptions and virtual networks. With its robust features, you can streamline the deployment and management of network security, taking advantage of the firewall's scalability and availability. Additionally, it enables centralized management of security settings across multiple virtual networks, employing a unified set of application and network rules for enhanced protection. This makes it easier for organizations to maintain consistent security postures as they expand their cloud infrastructure.

Sangfor Athena NGFW is an advanced next-generation firewall designed to deliver robust, AI-driven security across network perimeters. Utilizing cloud-based AI malware inspection, it blocks over 99% of threats, combining network and web application firewalls in a single, unified device. The built-in SOC Lite module enables swift threat detection and incident response, enhancing organizational cybersecurity posture. Athena NGFW integrates seamlessly with a broader security ecosystem including endpoint protection (EPP), secure web gateways (SWG), and extended detection and response (XDR and MDR) platforms. The firewall has earned top industry accolades, such as AAA ratings in CyberRatings tests and recognition in Gartner’s Magic Quadrant. It provides cost-effective, scalable protection ideal for enterprise environments facing evolving cyber threats. Sangfor’s collaboration with global threat intelligence platforms keeps its defenses up to date against emerging vulnerabilities. This solution empowers organizations to maintain secure, high-performing networks with comprehensive visibility and control.

Cloud Firewall stands out as one of the pioneering SaaS firewalls available on the public cloud, making it an ideal selection for enhancing the security of your cloud-based business operations. This solution from Alibaba Cloud effectively oversees and manages the policies that govern internet traffic directed toward your enterprises. Additionally, it regulates traffic among VPC networks, manages the flow on Express Connect instances, and supervises connections established through VPN for remote access. Equipped with an Intrusion Prevention System (IPS), Cloud Firewall can identify unauthorized outbound connections originating from your assets. Furthermore, it offers the capability to visualize network traffic and interactions between different business units, while also retaining network traffic logs for up to six months. Activation of Cloud Firewall is straightforward, requiring no intricate network setup or image file installations. To ensure robust reliability, firewalls are deployed in clusters, and the system supports seamless capacity expansion, allowing for flexible scaling as your business requirements evolve. This combination of features makes Cloud Firewall a comprehensive solution for securing cloud environments.

Recent advancements in artificial intelligence have significantly reduced the emergence of zero-day attacks, enhanced security measures for DevOps, and simplified operations within data centers while allowing for greater scalability. The Quantum Firewall Software R82 offers robust security features and user-friendly operation for both Quantum on-premises and CloudGuard Network firewalls. Utilizing AI, it provides adaptive threat prevention capabilities that are designed to address both novel and encrypted threats effectively. With dynamic tools tailored for swiftly evolving environments, it can automatically adjust to accommodate business growth and unpredictable surges in traffic. Featuring NIST-certified encryption, it guards against the risks posed by quantum computing threats. Furthermore, it reveals hidden relationships and traffic patterns that help thwart new malicious campaigns and combat brand impersonation. By enhancing website categorization, R82 maximizes the effectiveness of existing security policies. This innovative solution also delivers formidable protection against the most elusive phishing attempts, malware, and DNS threats, even within encrypted traffic, ensuring a comprehensive defense strategy. Ultimately, R82 empowers organizations to navigate the complexities of modern cybersecurity challenges with confidence.

Advanced threat protection is essential for organizations ranging from small businesses to multinational corporations and cloud-based environments. Experience limitless network security tailored to your needs. SonicWall next-generation firewalls (NGFW) offer the necessary security, control, and visibility to help you uphold a robust cybersecurity framework, regardless of whether you operate from a small office or a vast cloud infrastructure. Each firewall is equipped with SonicWall's award-winning hardware and cutting-edge technology, ensuring you stay ahead of emerging threats. Designed for networks of various sizes, SonicWall firewalls cater to your unique security requirements while remaining budget-friendly, ensuring effective protection for your digital assets. Furthermore, the SonicWall NSv Series virtual firewall combines the protective features of a physical firewall with the advantages of virtualization, including enhanced scalability, rapid system deployment, straightforward management, and significant cost savings, making it an ideal solution for modern businesses. By leveraging these advanced technologies, organizations can confidently navigate the complexities of today’s cyber landscape.

AWS Firewall Manager serves as a centralized security management tool that enables users to configure and oversee firewall rules throughout their AWS Organization accounts and applications. As new resources are deployed, Firewall Manager simplifies the compliance process by applying a unified set of security regulations. This service provides a streamlined approach to developing firewall rules, establishing security policies, and enforcing them consistently across your entire infrastructure. With AWS Firewall Manager, you can effectively implement AWS WAF rules for your Application Load Balancers, API Gateways, and Amazon CloudFront distributions. In addition, it allows for the creation of AWS Shield Advanced protections for various services including Application Load Balancers, ELB Classic Load Balancers, Elastic IP Addresses, and CloudFront distributions. Furthermore, AWS Firewall Manager facilitates the activation of security groups for your Amazon EC2 and ENI resource types within Amazon VPCs, thereby enhancing your overall security posture. This comprehensive approach ensures that as your cloud environment evolves, your security measures adapt seamlessly to meet new challenges.

Our platform offers invisible protection for users as they navigate the online world. As a result, threats become a thing of the past, and the overwhelming number of alerts is significantly reduced. Discover the essential components that contribute to the security, ease, and simplicity of the Menlo Security platform. At the heart of our innovative security strategy is the Elastic Isolation Core, which effectively safeguards against both known and unknown threats by isolating them before they can reach users. Implementing a Zero Trust isolation model guarantees complete protection without the requirement for specialized software or plug-ins, ensuring users enjoy uninterrupted performance and a smooth workflow. Designed to be cloud-native and high-performing, the Elastic Edge is capable of scaling globally and on-demand. It adapts dynamically to support enterprise growth, accommodating anywhere from 1,000 to over 3 million users without diminishing performance, while offering a wide array of APIs and integrations for seamless extension. This combination of features not only enhances security but also streamlines user experience across the board.

Cipafilter provides insightful reports detailing the most frequented websites, the most engaged users, unusual activities, and much more. With user-friendly navigation, you can pinpoint exactly what you're looking for and track user locations effortlessly. Are you aware of which website or student consumes the most bandwidth? What are the most common search queries among your students? How can you generate a report of a specific user's browsing history? Cipafilter's extensive reporting tools will help you answer these questions and much more. Monitoring internet usage across different devices can be a challenge, often leaving you with either insufficient data or an overwhelming amount of it, both of which obscure your understanding of network activities. Regardless of whether you're on or off your network, you can utilize full reporting features on any device. Our InSite™ reports deliver a straightforward and clear overview of internet usage, allowing you to examine both group and individual browsing patterns. Generating reports for all your devices has never been more straightforward. Plus, with Cipafilter, you can ensure that your network remains efficient and secure while maintaining a comprehensive understanding of user behavior online.

Prevent the horizontal movement of threats within multi-cloud environments by implementing a software-based Layer 7 firewall at each workload location. As threat actors navigate through your infrastructure and ransomware attacks grow more advanced, east-west traffic has emerged as a critical area of concern. Leverage a software-defined Layer 7 firewall that provides detailed enforcement at scale, effectively securing east-west traffic in the contemporary multi-cloud landscape. This solution allows for straightforward network segmentation, halting the lateral spread of threats while enabling rapid, secure development as you transition to a Zero Trust model. Achieve comprehensive visibility across all network flows, facilitating precise micro-segmentation and the creation of context-aware policies tailored for each workload. By adopting a modern, distributed firewall solution specifically designed to protect multi-cloud traffic across virtualized workloads, you will significantly decrease the attack surface and enhance defenses against both known and emerging threats. Ultimately, this proactive approach not only fortifies your security posture but also ensures a resilient and agile infrastructure in an evolving threat landscape.

As the digital landscape expands, the frequency and complexity of cyber threats continue to rise. This surge in data breaches and interruptions can jeopardize both your business's reputation and its operations, making a robust security solution indispensable for any IT framework. NSFOCUS offers a comprehensive Next Generation Firewall (NGFW) that adapts to the evolving demands of your cloud-driven enterprise network. This solution not only incorporates NGFW functionalities but also works in tandem with other security devices to proactively combat cyber threats while enhancing user and application performance, all while minimizing overall ownership costs. Additionally, an advanced AI-driven content moderation module adeptly identifies various forms of content, including text, images, and videos. By employing honeypots and sophisticated AI algorithms, the system can effectively lure and analyze attacks. Furthermore, AI algorithms improve the detection of threats and applications within encrypted traffic, while a scalable AI-based antivirus engine significantly boosts virus detection rates, ensuring a comprehensive defense against emerging threats. In this rapidly changing cyber landscape, investing in such advanced security measures is essential for safeguarding your enterprise’s future.

AWS Network Firewall allows you to establish detailed firewall rules, giving you precise control over network traffic while facilitating the easy deployment of security measures throughout your VPCs. The service can automatically scale to safeguard your managed infrastructure effectively. It is designed to protect your specialized workloads through a versatile engine capable of defining thousands of custom rules. Additionally, you can centrally manage security policies across multiple accounts and VPCs, ensuring that mandatory policies are enforced automatically on new accounts. AWS Network Firewall not only permits the definition of detailed firewall rules but also integrates seamlessly with AWS Firewall Manager. This integration enables you to create policies based on Network Firewall rules, which can then be applied uniformly across your virtual private clouds (VPCs) and accounts. Furthermore, the service provides essential features for traffic flow inspection, including the ability to analyze inbound encrypted traffic, perform stateful inspection, detect protocols, and much more, ensuring comprehensive network security.