A series of cyberattacks targeting Microsoft collaboration software, specifically SharePoint, have been linked to Chinese hackers and threat actors.

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Following criticism of the company’s use of Chinese workers to advise on operation of Department of Defense cloud systems, Microsoft has changed its policy.

Technicians from China took care of the Department of Defense's cloud on behalf of Microsoft. After this came to light, the provider had to rebuild.

The change follows a ProPublica report that outlined how Microsoft’s use of Chinese engineers left U.S. defense clients vulnerable to cybersecurity risks.

Microsoft has relied on engineers based in China for years to help maintain some of the U.S. Department of Defense’s