Governance checklist for NGFW

Buying and installing a next-generation firewall solves a small part of the perimeter security problem. The part that actually reduces risk is the governance around it.

What to review

• Do the firewall policies reflect the current network topology, or were they inherited from an old one?
• Is there a formal process for periodic rule review, or do rules only grow and never get removed?
• Are firewall logs actually being analyzed, or just stored "just in case"?
• Is there clear segregation between production, staging and third-party environments?
• Is there an incident response plan that uses NGFW data, or does it exist in isolation from other tools?

The most common mistake

Treating the NGFW as a one-time deployment project instead of an ongoing operational discipline. Rules that made sense at installation become security technical debt two years later if nobody is responsible for reviewing them.