Best Firewall Software for Mac of 2025

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.

For IT professionals to stop ransomware, you need to do more than look for threats. ThreatLocker helps you reduce your surface areas of attack with policy-driven endpoint security and change the paradigm from only blocking known threats, to blocking everything that is not explicitly allowed. Combined with Ringfencing and additional controls, you enhance your Zero Trust protection and block attacks that live off the land. Discover today the ThreatLocker suite of Zero Trust endpoint security solutions: Allowlisting, Ringfencing, Elevation Control, Storage Control, Network Access Control, Unified Audit, ThreatLocker Ops, Community, Configuration Manager and Health Center. 

NextDNS offers comprehensive protection from various security risks, effectively blocking advertisements and trackers across websites and applications while ensuring a secure and monitored online experience for children on all devices and networks. You can assess your security needs and customize your protection by activating over ten different safety measures. By utilizing reliable threat intelligence feeds that contain millions of harmful domains and update constantly, you can enhance your defense mechanisms. Our system goes beyond merely tracking domains; it evaluates DNS queries and responses instantaneously, allowing for the swift identification and prevention of harmful activities. Given that there is often only a brief window of hours from when a domain is registered to when it is used in an attack, our advanced threat intelligence framework is designed to identify malicious domains more efficiently than traditional security methods. Additionally, you can effectively eliminate advertisements and trackers in both websites and applications, including even the most sophisticated ones, by leveraging the most widely used ad and tracker blocklists, which include millions of domains that are refreshed in real-time. Ultimately, NextDNS empowers users with tools to create a safer browsing environment tailored to their specific security needs.

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.

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.

The pfSense project provides a free network firewall distribution. It is based on FreeBSD's operating system with a custom kernel. Third-party free software packages are also included. The package system allows pfSense software to offer the same functionality as or more common commercial firewalls without any artificial limitations. It has replaced every major commercial firewall in many installations around the globe, including Check Point and Cisco PIX, Cisco ASA and Juniper.

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.

Traditional packet filters are gradually becoming outdated, as even open-source solutions are shifting towards Next-Generation Firewalls. OPNsense stands out as a leading option for features like intrusion detection, application control, web filtering, and antivirus protection. No network, regardless of its size, is immune to potential attacks; even devices in home networks, such as washing machines and smartwatches, are at risk and need robust security measures. Firewalls play a crucial role in a comprehensive security strategy, shielding systems from both established and emerging threats. The effectiveness of a firewall is maximized when its capabilities are well understood, it operates intuitively, and is strategically placed within the network infrastructure. OPNsense rises to the occasion by fulfilling these essential requirements in various ways. This book serves as an invaluable guide for anyone looking to comprehend, install, and configure an OPNsense firewall effectively. Ultimately, understanding the intricacies of OPNsense can empower users to create a more secure digital environment.

Data is the most valuable asset of your company, so it is important to protect it. Network security is about zero trust. You should never trust anyone outside or within your network perimeter. Network security is becoming more difficult because network perimeters are blurring and endpoints continue proliferating. Cyberattacks are also being launched using machine learning and automation. Organizations are shifting to the cloud to protect their data in a hybrid cloud/on premises environment. This is without adding cost or complexity. A huge step towards secure environments is the combination of micro-segmentation and real-time network governance. You can improve your security posture through automation and data by choosing the right software solution. ditno is a cybersecurity management platform that offers a zero trust network approach to simplify and improve security.

Guardian offers the most reliable and secure method to safeguard your privacy and data while utilizing applications and surfing the internet on your iOS device. By routing traffic through its firewall servers, Guardian conceals your IP address from the websites you visit, complicating the efforts of advertisers to follow your activities. It ensures robust protection for your passwords, financial details, and other sensitive information with strong AES-256 encryption, making it difficult for hackers to access your data no matter where you are. In addition to providing an extra layer of encryption for all outgoing network traffic, Guardian also filters out unwanted junk, enhancing your mobile browsing experience. You can confidently grant permissions to specific applications on your device, knowing that any attempts to transmit data to unauthorized trackers will be effectively thwarted. Furthermore, Guardian blocks unwanted connections from location trackers, email trackers, generic data trackers, and various other online irritants, ensuring a more secure and enjoyable online presence. This comprehensive protection not only preserves your privacy but also allows you to navigate the digital world with peace of mind.

Comodo Advanced Endpoint Protection delivers an exceptional anti-malware suite that actively safeguards your servers, workstations, laptops, and netbooks, while also providing sophisticated, real-time oversight and management of essential system resources. It can be utilized either as a comprehensive security package or as a standalone sandbox to enhance existing antivirus solutions, making Comodo ESM a top choice for endpoint protection on Microsoft Windows servers, desktops, laptops, and tablets. The complete Comodo Endpoint Security suite boasts five layers of defense—Antivirus, Firewall, Host Intrusion Prevention, Auto-Sandbox, and File Reputation—directly at the user level on the desktop. Its innovative auto-sandbox technology effectively prevents malware infections and operating system damage by executing untrusted processes in a segregated environment. Furthermore, Comodo's endpoint protection is distinguished as the only managed anti-malware solution that offers a limited warranty of $5,000 against malware infections, affirming its commitment to security. This combination of advanced features ensures that users have a robust and reliable defense against evolving cyber threats.

WAPPLES SA (software appliances) is a virtual web app firewall (WAF), that can be seamlessly integrated into cloud systems and other virtual environments. It is ideal for enterprises such as hosting providers and data centers, as well as SMBs such managed security service providers or private cloud business infrastructures. WAPPLES SA supports popular hypervisors such as XenServer and KVM.

AP Lens is a Sandbox Browser designed to enhance network security through DNS Whitelisting, effectively preventing attacks from penetrating the network. What features does AP Lens offer? - Web Filtering: Offers adaptable and user-friendly options for content blocking. - Anti-Phishing: Eliminates look-alike domains with complete precision. - Ransomware Protection: Safeguards the network while allowing business applications to function smoothly. - Secure Remote Work: Implements internet usage policies efficiently without the delays associated with VPNs. - No More 0-Day Attacks: Overcomes the limitations of traditional blacklisting through the AP Lens Augmented Whitelist. - Compliant: Aligns with regulatory standards set forth by cybersecurity insurance policies. - One-Click Installation: Allows for quick setup without requiring extensive user intervention or updates. - No Maintenance: Prevents malware and phishing threats without the need for ongoing oversight. With a foundation built on over 20 years of expertise in cybersecurity, cloud security, and information protection across various sectors, including private banking and public services, our team is equipped to address the evolving challenges in digital security.

Enhance your SMB's security by utilizing a firewall designed to detect threats, eliminate viruses, and establish a secure VPN. Easily configure your firewall with user-friendly traffic rules to manage both incoming and outgoing communications based on various criteria such as URL, application, and traffic type. The Snort system offers continuous monitoring for suspicious activities, allowing you to log or block communications based on their severity level. It effectively prevents the infiltration of viruses, worms, Trojans, and spyware into your network. Beyond merely scanning files for harmful code, Kerio Control analyzes network traffic to identify potential attacks, ensuring a comprehensive security approach. Establish fast and secure server-to-server connections between your offices using Kerio Control’s straightforward VPN setup, or connect to a remote office that lacks Kerio Control by employing standard VPN protocols for added flexibility. This multi-faceted approach not only safeguards your network but also maintains high performance across all connections.