Story
Microsoft says bug causes Copilot to summarize confidential emails
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Overview
A bug in Microsoft 365 Copilot has caused the AI assistant to summarize confidential emails since January 21, bypassing data loss prevention (DLP) policies. This issue affects the Copilot "work tab" chat feature, allowing it to incorrectly read and summarize emails from users' Sent Items and Drafts folders.
Summary from bleepingcomputer.com.
Reports
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bleepingcomputer.com
Microsoft says bug causes Copilot to summarize confidential emails
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Community reactions
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Hacker News · bleepingcomputer.com
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Based on 5 sampled comments from this thread. Analyzed 2026-02-18.
- Praise: The bug is fixable, indicating that Microsoft can address the issue and improve the AI's functionality over time.
- Praise: This incident highlights the ongoing evolution of AI tools, pushing for better permission models that could enhance user trust in the long run.
- Concern: The breach of trust and privacy by Copilot raises serious concerns about the reliability of AI tools in handling sensitive information.
- Concern: There are significant questions about how confidential data is managed within the model, leading to fears about data security and privacy.
- Concern: The lack of a robust security posture from Microsoft leaves users uncertain about potential hidden vulnerabilities in their AI systems.