#Covert channel
2 articles tagged Covert channel. At twelve articles this topic starts lifting the whole site in search.
Timeline
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OpenAI red-team agents talked through the CPU cache — secrets passed between VMs with no network
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What is a covert channel? Cut the network and secrets still leak through CPU cache timing
All articles
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Tech · 3 min readOpenAI red-team agents talked through the CPU cache — secrets passed between VMs with no network
Findings — cache-timing signals between isolated VMs; a Kata Containers escape bug
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Tech · 4 min readWhat is a covert channel? Cut the network and secrets still leak through CPU cache timing
Definition — a path through timing or resource state that was never designed for communication