The dedicated Copilot key is the biggest change since Microsoft introduced the Windows key in 1994 -- but there's far more to the story than that.

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.

A China-based threat actor gained access to a Microsoft account (MSA) cryptographic key, as early as 2021, and used it to spy on the US State and Commerce Departments and other US government agencies.

Windows 11 Pro launched in October 2021, and while the OS itself was a big step forward with a cleaner, more intuitive ...

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 ...

Microsoft releases security updates for critical SharePoint vulnerabilities CVE-2025-53770 and CVE-2025-53771 amid active exploitation targeting organizations.

Microsoft is adding a new key to PC keyboards for the first time since 1994 Copilot key will eventually be required in new PC keyboards, though not yet.

China hacked dozens of email accounts, including in government. Microsoft opens up, slightly, about how the hackers pulled off the heist.

Microsoft showcased new products and collaborations with OpenAI, Nvidia, and Elon Musk's xAI at its Build conference, focusing on AI models for Azure clients.

The tech giant is required to regularly provide U.S. officials with its plan for keeping government data safe from hacking.