Network segmentation divides a network into zones with controlled traffic flow between them โ a fundamental defence-in-depth control. Segmentation testing verifies that the boundaries work: can a compromised system in one zone reach systems in another? Can an attacker in the DMZ reach internal databases? Can a guest network user access corporate resources? Testing maps actual traffic paths between zones and identifies segmentation gaps that would enable lateral movement during a real attack.
Technical2026-12-07
Network Segmentation Testing: Verifying Isolation Between Zones for Philippine Enterprises
Network segmentation is a fundamental defence โ but only if it actually prevents lateral movement. How to test it. Guidance for PH market.