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simon_willison · May 26, 2026 · news
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Microsoft Copilot Cowork Exfiltrates Files
simonwillison.netMay 26, 2026
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In brief
Microsoft Copilot Cowork Exfiltrates Files The biggest challenge in designing agentic systems continues to be preventing them from enabling attackers to exfiltrate data. In this case Microsoft Copilot Cowork (yes, tha...
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