Microsoft says some SharePoint hackers now using ransomware

July 24, 2025 - 3:55 PM
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A sign of Microsoft is pictured on its office building in Beijing, China May 25, 2023. (Reuters/Tingshu Wang)

 Microsoft MSFT.O said some of the hackers involved in the cyberespionage sweep aimed at the U.S. tech giant’s SharePoint servers are now using ransomware, a potential escalation in the wide-ranging spy campaign.

Microsoft made the claim in a blog post issued late Wednesday.

—Reporting by Raphael Satter; Editing by Himani Sarkar