Chinese hackers breached the U.S. National Nuclear Security Administration through Microsoft SharePoint, with the Energy ...

Chinese-linked hackers breached several U.S. government agencies, including the Department of Homeland Security and the Department of Health and Human Services, by exploiting a vulnerability in ...

Hackers have breached about 400 government agencies, corporations and other groups, according to estimates from Eye Security.

A critical SharePoint zero-day (CVE-2025-53770) has been used to breach 400 firms, including the US nuclear agency. Microsoft blames Chinese state hackers.