Misconfigured firewall rules can negatively impact network communications, restricting legitimate traffic between network segments. Firewall testing helps administrators identify and fix such issues. Testing tools can vary from basic connectivity tests and packet traces to port scans and penetration tests. Ensuring firewall rule lists are orderly and rules are correctly applied is crucial to avoid complexity. After testing, verifying whether the required protocols are allowed and revising the rules as necessary is advised. Along with careful control of changes, automated testing can streamline the process, proving faster and more consistent than manual tests.

New infosec products of the month: March 2026
Here’s a look at the most interesting products from the past month, featuring releases from Beazley, Bonfy.AI, Mend.io, Mimecast, NinjaOne, Novee, Intel 471, Singulr AI,


