REDMOND, Wash. (AP) — A bug in the Microsoft email server software has led to an exploit by hackers.
The Redmond-based company said that a “highly skilled and sophisticated” state-sponsored group operating from China has been trying to steal information from a number of American targets.
The hacking group called Hafnium was able to trick Exchange servers into allowing it access and then controlled the servers remotely to steal data.
The company declined to name any specific targets or say how many organizations were affected.
Microsoft says it has released security patches to fix the vulnerabilities.