2025 Q4 Enterprise Firewall Comparative Report

In Q3 2025, NSS Labs conducted independent evaluations of seven leading Enterprise Firewall offerings using the Enterprise Firewall Test Methodology v3.0. The evaluation covered key performance metrics, including how effectively the firewall protected customers from exploits and malware over encrypted traffic, while also avoiding evasions and triggering false positives, all while remaining stable under enterprise workloads. The firewalls were tested using real-world attack scenarios, enterprise-grade workloads, and adversarial evasion techniques to measure their resilience, reliability, and performance.