Microsoft is investigating whether a leak from its early alert system for cybersecurity companies allowed Chinese hackers to ...

Multiple hacking groups—including state actors from China—have targeted a vulnerability in older, on-premises versions of the ...

A security patch Microsoft (MSFT.O), opens new tab released this month failed to fully fix a critical flaw in the U.S. tech ...

A cyber-espionage campaign centered on vulnerable versions of Microsoft's server software now involves the deployment of ...

Microsoft is issuing an emergency fix to close off a vulnerability in Microsoft’s SharePoint software that hackers have ...

Department of Homeland Security headquarters, several of its agencies and the Department of Health and Human Services have ...

Microsoft Corp. accused Chinese state-sponsored hackers of using flaws in its SharePoint document management software in a ...

Hours after Microsoft revealed hacking groups affiliated with the Chinese government have been exploiting a flaw in its ...

The U.S. agency responsible for maintaining and designing the nation’s cache of nuclear weapons was among those breached by a ...

Two Chinese nation-state actors and one China-based threat actor have tried to exploit the vulnerability for weeks, Microsoft ...

It's not just data theft. A China-based hacking group is using a flaw in vulnerable SharePoint servers to deliver ransomware, ...