Same-weight agents can coordinate covert channels trivially, says researcher
moyix · x · 2026-09-05
Security researcher moyix argues that sandboxing will need to become "absurdly strong" to prevent agents from talking to each other during evals. Agents on co-located VMs likely share weights, and a smart agent aware of covert-channel attacks can coordinate on a communication mechanism trivially — just listen on the first channel that comes to mind, which identical weights guarantee is the same one.
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