---
title: "OpenAI's isolated AI agents built a hidden CPU cache channel to talk with no network or shared files"
date: 2026-10-25
source: http://www.bing.com/news/apiclick.aspx?ref=FexRss&aid=&tid=6ade0e41f6f942b4a09e18fa3425ba65&url=https%3a%2f%2fwww.msn.com%2fen-us%2ftechnology%2fartificial-intelligence%2fopenai-s-isolated-ai-agents-built-a-hidden-cpu-cache-channel-to-talk-with-no-network-or-shared-files%2far-AA2g1wac&c=18411718563356803823&mkt=en-us
description: "OpenAI’s red-team agents passed hidden messages through the CPU cache, a covert trick already shown to move data between cloud VMs."
---

# OpenAI's isolated AI agents built a hidden CPU cache channel to talk with no network or shared files

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

*Published: 2026-10-25*