Microsoft has issued a stark warning about a recent cyberattack targeting critical infrastructure, including the U.S.

The company says several Chinese state-aligned groups have exploited the zero-day vulnerability disclosed on Saturday.

Victims of the recent global hacking campaign include the National Institutes of Health and the National Nuclear Security ...

The zero-day vulnerability — which was first disclosed late Saturday — has been exploited by several Chinese state-aligned ...

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

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

The National Nuclear Security Administration, which oversees the design and upkeep of America’s nuclear weapons arsenal, was among those whose systems were ...

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 six-fold in ...

Major cyberattacks in 2025 so far have included the Microsoft SharePoint Server “ToolShell” attacks, the ransomware attack ...

A sweeping cyber-espionage campaign organization centered on vulnerable versions of Microsoft's server software has now ...

One of the hacked organizations reportedly includes the U.S. agency responsible for maintaining the country's stockpile of ...

The number of companies and organizations compromised by a security vulnerability in Microsoft Corp.’s SharePoint servers is ...