# OpenAI's isolated red-team AI agents built a hidden CPU cache channel to talk with no network or shared files — exploited CPU cache timing to bypass microVM sandboxes | Tom's Hardware

<https://www.tomshardware.com/tech-industry/artificial-intelligence/openais-isolated-red-team-ai-agents-built-a-hidden-cpu-cache-channel-to-talk-with-no-network-or-shared-files-exploited-cpu-cache-timing-to-bypass-microvm-sandboxes>

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- Saved: October 26, 2026 (2026-10-26T17:29:38Z)
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## Facts

- Kind: [Page](https://links.thingelstad.xyz/kinds/page/)

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## Elsewhere

- Wayback Machine: https://web.archive.org/web/*/https://www.tomshardware.com/tech-industry/artificial-intelligence/openais-isolated-red-team-ai-agents-built-a-hidden-cpu-cache-channel-to-talk-with-no-network-or-shared-files-exploited-cpu-cache-timing-to-bypass-microvm-sandboxes