How a 2am Firewall Failure Created FireMon and NSPM

A late night firewall outage in the 90s revealed a hidden policy rule that stopped critical traffic and sparked the need for better visibility and control. To ensure it never happened again, he began building tools to track firewall rule changes and automate firewall policy management.

This idea became FireMon, launched in 2001 and now trusted by enterprises worldwide to secure complex networks, improve compliance, and keep security policies aligned with intent. Watch the story behind how NSPM began and why the right firewall policy is essential to effective cybersecurity.