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Thu, August 21, 2025

Microsoft restricts Chinese firms' early MAPP exploit access

🔒 Microsoft has restricted distribution of proof-of-concept exploit code to MAPP participants in countries where firms must report vulnerabilities to their governments, including China. Affected companies will receive a more general written description issued at the same time as patches rather than PoC code, Microsoft said. The change follows the late-July SharePoint zero-day attacks and concerns about a possible leak from the early-bug-notification program.

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