A sweeping cyber espionage operation targeting Microsoft server software compromised about 100 organizations as of the weekend, two of the organizations that helped uncover the campaign said on Monday.

Microsoft said it identified 2 groups as leveraging flaws in SharePoint software; China said it firmly opposes all forms of cyberattacks.

Federal and state agencies have been plunged into panic after hackers prised open a gap in the armor of a Microsoft program’s security software, researchers have said. At least two unnamed federal agencies,

A security patch released by Microsoft earlier this month failed to fully fix a critical flaw in the U.S. tech company's SharePoint server software that had been identified at a hacking competition in May,

Russian cybercriminals are targeting Microsoft 365 accounts with specialized malware, the UK government's cybersecurity arm has warned.

A major security vulnerability in Microsoft’s server software is being actively exploited by hackers, the Dutch National Cyber Security Center (NCSC) warned Monday. Microsoft has issued updates to mitigate the risk,

Hackers exploited a zero-day vulnerability in Microsoft SharePoint servers, targeting US federal agencies and other entities.