Microsoft issued an emergency fix to close off a vulnerability in its SharePoint software that hackers have exploited to carry out widespread attacks on businesses and at least some federal agencies.

The U.S. federal government and cybersecurity researchers say a newly discovered security bug found in Microsoft’s SharePoint is under attack. U.S. cybersecurity agency CISA sounded the alarm this ...

Microsoft has announced that it will start updating security defaults for all Microsoft 365 tenants in July to block access to SharePoint, OneDrive, and Office files via legacy authentication ...