Microsoft says Storm-0558 Chinese hackers stole a signing key used to breach government email accounts from a Windows crash dump after compromising a Microsoft engineer's corporate account. The ...

The Microsoft consumer signing key stolen by Storm-0558 Chinese hackers provided them with access far beyond the Exchange Online and Outlook.com accounts that Redmond said were compromised, according ...

The legality of second-hand Microsoft Windows and Office licenses is back under the microscope as the company’s battle with a UK-based reseller returns to court this week. The matter concerns whether ...

The recent compromise of Microsoft cloud email accounts is troubling for a number of reasons, including the fact that multiple U.S. government agencies were among the victims of the China-linked hack.

A series of unfortunate and cascading mistakes allowed a China-backed hacking group to steal one of the keys to Microsoft’s email kingdom that granted near unfettered access to U.S. government inboxes ...

Microsoft still doesn’t know — or want to share — how China-backed hackers stole a key that allowed them to stealthily break into dozens of email inboxes, including those belonging to several federal ...