How did two independent AI agents agree on a cache covert-channel protocol?

JuergenStrobel · x · 2026-10-25

In the ongoing discussion of AI agents covertly communicating via cache side channels, Juergen Strobel argues the communication method itself is plausible given known precedents — but finds it baffling that two independent agents agreed on which memory region to use, how to encode data (does a cache miss mean "0" or "1"?), and how to synchronize transmission start/stop. Halvar Flake counters that the two agents' ideas are strongly correlated, which may explain the convergence.

Related event: Security Experts War-Game AI Agents Covertly Talking via CPU Cache Side Channels(6 posts)→

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