Microsoft has warned that Chinese state-sponsored hackers have breached its SharePoint software used by the US agency responsible for maintaining and modernizing the nation’s stockpile of nuclear weapons, according to a report.

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

The number of companies and organizations compromised by a security vulnerability in Microsoft Corp.’s SharePoint servers is increasing rapidly, with the tally of victims soaring more than

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