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Your Microsegmentation Policy Is Not Proven Until You Test The Deny

A clean rule set is not evidence that lateral movement paths are closed

Microsegmentation only reduces blast radius when denied paths are tested from real workloads. This article presents a practical method for validating policy enforcement, identity context, failure behavior, and containment over time.

Posted by Alexander Goller on Tuesday, September 8, 2026

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Principal Solutions Architect, Zero Trust Evangelist, BSD enthusiast

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2026 ai-security attacks breach-containment cisco cloud-security containers containment cyber-resilience hard-truths hybrid-cloud identity identity-security kubernetes lateral-movement links management-plane metrics microsegmentation microservices mitre mitre-attack network-segmentation oauth ransomware segmentation supply-chain vulnerability-management weekly-roundup zero-trust