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Microsoft Reportedly Cuts China's Early Access to Bug Disclosures, PoC Exploit Code


An anonymous reader quotes a report from The Register: Microsoft has reportedly stopped giving Chinese companies proof-of-concept exploit code for soon-to-be-disclosed vulnerabilities following last month's SharePoint zero-day attacks, which appear to be related to a leak in Redmond's early-bug-noti...

According to Microsoft spokesperson David Cuddy, who spoke with Bloomberg about changes to the program, MAPP has begun limiting access to companies in "countries where they're required to report vulnerabilities to their governments," including China. Companies in these countries will no longer receive "proof of concept" exploit code, but instead will see "a more general written description" that Microsoft sends at the same time as patches, Cuddy told the news outlet. "A leak happened here somewhere," Dustin Childs, head of threat awareness at Trend Micro's Zero Day Initiative (ZDI), told The Register in July.

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