Hackers in recent weeks have exploited flaws in SharePoint, a document management system developed by Microsoft Corp., to try to steal sensitive data from hundreds of victims.

Dozens of organizations appear to have been affected over the past few days by hackers targeting Microsoft server software. Microsoft said in a post on its website on Saturday that it was “aware of active attacks targeting on-premises SharePoint Server customers by exploiting vulnerabilities.

A major cyberattack has targeted Microsoft SharePoint servers, reportedly impacting at least two US government agencies and hundreds of other organisations globally. Hackers may h