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AC

AC

Ubuntu’s userns Mediation Is a Tripwire, Not a Wall

Ubuntu 24.04 enabled AppArmor mediation of unprivileged user namespaces by default, then Qualys published three ways around it. Here’s what the control actually stops, the audit chain that proves it fired, and how to detect abuse without flooding the SOC.

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AC

Countering Adversary AI Agents That Run the Whole Operation

GTG-1002 showed an AI agent running recon through exfiltration at machine speed across roughly 30 targets. A blue-team analysis of the behavioral tells, the identity and SIEM signals that expose autonomous operations, how to break the adversary’s loop, and where defensive AI agents help versus where the human-in-the-loop line stays.

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AC

OIDC trust policies are the CI/CD attack surface nobody is watching

Short-lived OIDC federation from GitHub Actions to cloud IAM roles is the right pattern — and the trust policy condition is exactly where it goes wrong. What the abuse looks like in CloudTrail, why the obvious detection doesn’t fire, and what the first round of tuning has to fix.

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