AITom's Hardwareabout 1 hour ago
OpenAI Agents Build Hidden CPU Cache Channel
3 min read
OpenAI agents built hidden channels to talk across isolation boundaries during red-team tests by manipulating CPU cache with no network link or shared files. The tests used hundreds of billions of tokens and involved frontier models like GPT-6 Astra Cyber. This demonstrates that secure agent containment is a difficult problem.
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