Best Firewall Software for Windows

Heimdal® Endpoint Detection and Response is our proprietary multi-solution service providing unique prevention, threat-hunting, and remediation capabilities. It combines some of the most advanced threat-hunting technologies: - Next-Gen Antivirus - Privileged Access Management - Application Control - Ransomware Encryption Protection - Patch & Asset Management - Email Security - Remote Desktop - Threat Prevention ( DNS based ) - Threat Hunting & Action Center With 9 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.

The ThreatLocker suite of security tools are powerful and designed so that everyone from businesses to government agencies to academic institutions can directly control exactly what applications run on their networks. We envision a future in which all organizations can chart their own course free from the influence of cybercriminals and the damage their incursions cause, and our team of veteran cybersecurity professionals created ThreatLocker to make this vision a reality. The team at ThreatLocker has been developing cybersecurity tools for decades, including programs to enhance email and content security, and this is our most innovative and ambitious cybersecurity solution yet. We developed this unique cybersecurity system because we believe that organizations should have complete control of their networks and should not have to live in fear of the next malware attack. To learn more, visit ThreatLocker.com.

Kamatera’s cloud firewall solutions provide protection from attacks on cloud servers and private cloud networks. Our cloud security experts set up cloud firewalls and monitor your server’s activity in real time. We help shield your data by analyzing and filtering data packets to identify source, destination, and content, exclusively authorizing the entry of certified and approved data packets to your servers. Our highly secure cloud firewalls are an all-in-one solution, as they are compatible with all virtual appliances to deliver comprehensive protection. Kamatera’s cloud firewalls can also function as a hardware VPN server and act as a checkpoint for all network traffic. This eliminates the need for additional VPN services. Due to versatility and infinite scalability options, our cybersecurity services are perfect for individuals, SMBs, and enterprise-level companies. One single cloud firewall can protect your entire cloud infrastructure.

Multilayered endpoint security with behavior based analysis for prevention against known and unknown threats. Complete real-time visibility of all your global software inventory. Here, there, anywhere. Cloud-delivered FortiClient endpoint protection service designed for small and medium-sized business. Integrated endpoint protection platform that provides automated next-generation threat protection, visibility and control of your software and hardware inventory across the entire security fabric. Identify & remediate vulnerable or compromised hosts across your attack surface. As a key piece of the Fortinet Security Fabric, FortiClient integrates endpoints into the fabric for early detection and prevention of advanced threats. Security events including zero-day malware, botnet detections, and vulnerabilities are reported in real-time.

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. Our robust, easy-to-use security for devices, data, and applications is designed to keep small organizations and their employees safer online. Avast antivirus with multiple layers of security, online privacy, and remote-control features provides powerful cybersecurity controlled via a cloud-based management console. Avast Small Business Solutions are managed via cloud-based management console Avast Business Hub and consist of: * Avast Essential Business Security   * Avast Premium Business Security - combines our next-gen antivirus with VPN and USB control) * Avast Ultimate Business Security - award-winning next-gen antivirus with online privacy tools and patch management automation software

The pfSense project is a free network firewall distribution, based on the FreeBSD operating system with a custom kernel and including third party free software packages for additional functionality. pfSense software, with the help of the package system, is able to provide the same functionality or more of common commercial firewalls, without any of the artificial limitations. It has successfully replaced every big name commercial firewall you can imagine in numerous installations around the world, including Check Point, Cisco PIX, Cisco ASA, Juniper, Sonicwall, Netgear, Watchguard, Astaro, and more.

Fortinet is a global leader in cybersecurity solutions, known for its comprehensive and integrated approach to safeguarding digital networks, devices, and applications. Founded in 2000, Fortinet provides a wide range of products and services, including firewalls, endpoint protection, intrusion prevention systems, and secure access solutions. At the core of its offerings is the Fortinet Security Fabric, a unified platform that seamlessly integrates security tools to deliver visibility, automation, and real-time threat intelligence across the entire network. Trusted by businesses, governments, and service providers worldwide, Fortinet emphasizes innovation, scalability, and performance, ensuring robust defense against evolving cyber threats while supporting digital transformation and business continuity.

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. 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.

ditno. has taken the complexity out of IT security. We provide a single web portal to control access to all of an organization's servers whether they are in the cloud or internally hosted. We solve the problem of consistent and high-performance security across mixed environments. Using a PAYG model we remove the need for upfront investment and allow our customers to pay for exactly what they need at the time. We have a variety of customers across a number of verticals including law, energy, financial services, healthcare, technology and more across Australia and the UK.

Bit Guardian Firewall is a robust security solution designed to provide a safe, secure, and seamless browsing experience. It offers real-time protection against malicious content by blocking unsafe URLs and filtering unwanted websites and applications. The software includes an ad-blocking feature to eliminate distracting and potentially harmful pop-up and banner ads, ensuring uninterrupted browsing. Additionally, Bit Guardian Firewall safeguards user privacy by preventing online tracking, allowing users to connect to their favorite websites without the fear of being traced. For enhanced security, it offers add-on protection with Avira's malware databases, providing an impenetrable layer against online and offline threats. The firewall is compatible with Windows operating systems and is developed by Bit Guardian GmbH, a leading software development company based in Gräfelfing, Germany.

WAPPLES SA (software appliance) is a virtual web application firewall (WAF) that can be seamlessly integrated with cloud systems and other virtual environments. It is a great solution for enterprise customers such as data centers and hosting providers as well as SMBs such as managed security service providers and private cloud business infrastructures. WAPPLES SA has support for popular hypervisors including KVM, Citrix Hypervisor, and vSphere Hypervisor. WAPPLES SA (Software Appliance) generally provides all the capabilities of the hardware WAPPLES appliance with the added ability to scale as your business grows. Based on the same award-winning WAPPLES technology, WAPPLES SA can detect and block known, modified, and zero-day attacks with its Contents Classification and Evaluation Processing (COCEP™) engine.

AP Lens is a Sandbox Browser that isolates networks using DNS Whitelisting. We stop the attack before it reaches the network. What does AP Lens provide? - Web Filtering: Flexible and user-friendly content blocking. - Anti-Phishing: Stop look-alike domains with 100% accuracy. - Ransomware Protection: Isolate the network without affecting business applications. - Secure Remote Work: Enforce internet usage policies without VPN slowness. - No More 0-Day Attacks: Escape the limits of blacklisting with AP Lens Augmented Whitelist. - Compliant: AP Lens meets regulatory requirements requested by cybersecurity insurance policies. - One-Click Installation: No need for a lengthy setup process or updating from the user's side. - No Maintenance: Stop malware and phishing without continuous monitoring. Our team builds on over 20 years of experience in cyber security, cloud security, and information protection in industries such as private banking and the public sector.

Detect threats, block viruses and secure VPN with the firewall built for SMB. Configure your firewall with easy-to-use traffic rules, controlling in- and outbound communications by URL, application, traffic type and more. Intrusion detection and prevention using the Snort system constantly monitors inbound and outbound network communications for suspicious activity. Log or block the communications depending on the severity. Prevent viruses, worms, Trojans and spyware from entering your network. Kerio Control goes beyond just checking files for malicious code; it scans your network traffic for potential attacks. Create secure, high-performance server-to-server connections between your offices running Kerio Control with an easy-to-setup VPN technology. Or, you can create a secure VPN connection to a remote office that doesn’t have Kerio Control deployed, using industry-standard VPN protocols.

The NGFW TrusGuard has been acknowledged by a through market assessment for its technology, performance and stability. The firewall, IPS, application control, VPN, C&C, Anti-Virus/Anti-Spam and DLP protect the business environment. TrusGuard has full lineup from the low-end to data center level models. Scales up to protect high-performance networks. Capable of handling growing network traffic, thanks to optimization for high-performance multicore environments. Ensures network stability. Protects network resources (such as, websites, database servers, applications servers, and client machines) from unknown network attacks with the 3-step defense. Covers IPv6 network environments. Complete support for IPv6 networks. Reduces total cost of operation (TCO). Offers cost cuts compared to integrating multiple security products Relieves operational and labor costs associated with managing multiple security solutions. Increases productivity and network efficiency.