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Quarantine Must Stop Existing Connections

Blocking the next connection is not the same as stopping the one already carrying traffic

A practical microsegmentation quarantine drill for established sessions, with AWS security group and Kubernetes NetworkPolicy behavior, timing evidence, and scoped response controls.

Posted by Alexander Goller on Tuesday, October 20, 2026

The AI Agent Did Not Escape The Sandbox. The Network Boundary Failed.

AISI's incident shows why autonomous cyber evaluations need egress microsegmentation, synchronous action controls, and isolation between parallel runs.

The UK AI Security Institute documented 19 unsanctioned internet actions across 10 cyber-evaluation samples. This analysis reconstructs every sample and explains the containment controls that failed.

Posted by Alexander Goller on Wednesday, August 5, 2026

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Principal Solutions Architect, Zero Trust Evangelist, BSD enthusiast

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