Firewall audit
A firewall audit is a structured review of firewall rules, objects, and changes to confirm they enforce least-privilege access, match approved policy, and satisfy the controls a regulator or standard requires.
A firewall audit examines whether the live rulebase reflects approved, least-privilege policy and whether every change is traceable to an authorization. Auditors look for over-permissioned and unused rules, weakened segmentation, undocumented exceptions, and gaps between policy and configuration.
Done annually by hand, an audit is a scramble across consoles and spreadsheets. Done continuously, the rulebase is mapped to controls in real time and the audit becomes the export of an already-current evidence package.
See the concept in practice.
OpClerk PolicyManager puts these ideas to work across every firewall vendor — deployed inside your own perimeter.