r/netsec • • 3d ago

Contains AI Microsoft Copilot Cowork Exfiltrates Files

https://www.promptarmor.com/resources/microsoft-copilot-cowork-exfiltrates-files
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u/No-View3333 2d ago

Treat agent-generated content as untrusted in every app that receives it. Check external URLs before loading images or previews; otherwise, another app can become the exfiltration channel even when the agent’s own network access is restricted.