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

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 ...

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

The agency in charge of the nation’s nuclear arsenal was swept up in a cyberattack targeting Microsoft’s SharePoint software, ...

Though the vulnerability was first identified in May, it's taken more than two months for Microsoft to issue an effective fix.

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

The company said state-backed hacking groups were breaching systems through flaws in SharePoint, which is used by the U.S.

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

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