Home Cybersecurity by kevin Tom's Hardware OpenAI's isolated red-team agents built a hidden CPU cache channel to talk with no network or shared files

OpenAI's isolated red-team agents built a hidden CPU cache channel to talk with no network or shared files

Tom's Hardware 2026-10-25

Summary:

OpenAI’s red-team agents passed hidden messages through the CPU cache, a covert trick already shown to move data between cloud VMs.

Link:

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

From feeds:

Cybersecurity by kevin » Tom's Hardware

Tags:

artificial

Authors:

Shane Downing

Date tagged:

10/25/2026, 14:18

Date published:

10/25/2026, 07:30