The Chinese government has warned against using cyber security issues to defame the country, following the hacker attacks on Microsoft software. Foreign Ministry spokesman Guo Jiakun said in Beijing on Wednesday that he was not aware of the exact circumstances of the attacks.

At least two Chinese hacking groups were using security flaws in SharePoint, a popular collaboration software, to breach systems, Microsoft said.

Chinese "threat actors" have hacked Microsoft's SharePoint document software servers and targeted the data of the businesses using i

After a ProPublica investigation raised security concerns, Microsoft will cease using China-based engineers for work on sensitive Pentagon cloud computing systems.

Microsoft says the Chinese threat actors Linen Typhoon, Violet Typhoon, and Storm-2603 have been exploiting the ToolShell zero-days.

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 used engineers based in China to support highly sensitive US Defence Department cloud systems via a model called "digital escorting", a ProPublica investigation has revealed. American workers with security clearance input commands written by foreign engineers,

A security patch Microsoft released this month failed to fully fix a critical flaw in the U.S. tech giant's SharePoint server software, opening the door to a sweeping global cyber espionage effort, a timeline reviewed by Reuters shows.