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3 outlets·3 reports·over 3h

Microsoft says bug causes Copilot to summarize confidential emails

ThinkingNews Desk · how this was written

Microsoft 365 Copilot contained a bug that allowed the AI to read and summarize confidential emails stored in users’ Sent Items and Drafts folders, bypassing standard data-protection policies and exposing sensitive information. The issue was present from late January, and Microsoft deployed a fix in early February.

Written from all 3 reports below, not from any single one.

How it was reported

  1. Hacker News·
    Microsoft says bug causes Copilot to summarize confidential emails

    Microsoft's Copilot has a bug that causes it to summarize confidential emails. This issue may compromise sensitive information. The company is likely working to resolve the problem.

  2. TechCrunch·
    Microsoft says Office bug exposed customers’ confidential emails to Copilot AI

    Microsoft's Copilot AI chatbot accessed confidential emails of paying customers due to a bug. The bug bypassed data protection policies, allowing the AI to read and summarize sensitive information. Confidential emails were exposed as a result.

  3. TechMeme·
    Microsoft confirms a bug that let Microsoft 365 Copilot summarize confidential emails from Sent Items and Drafts folders, and deployed a fix in early February (Sergiu Gatlan/BleepingComputer)

    Microsoft 365 Copilot had a bug that summarized confidential emails from Sent Items and Drafts folders. The issue occurred since late January. A fix was deployed in early February.

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