1. What a review covers
- Overly permissive or unused rules.
- Any-any rules and unnecessary exposure.
- Change control and rule documentation.
- Secure configuration and firmware/patch level.
2. Beyond firewalls
The same rigour applies to routers, switches and security appliances — device hardening against benchmarks (e.g., CIS) closes common gaps.
How CyberSigma helps
We review firewall rule-sets and device configurations against best practice and benchmarks, and give you a prioritised clean-up plan.
This guide is educational and not legal advice. Requirements evolve — validate specifics against the current standard or regulation for your situation.