Ten actionable strategies for security admins, SOC teams, and MSPs to harden Windows 11 and shrink the attack surface.

A zero-day vulnerability in Microsoft Defender lets attackers gain full system access on up-to-date Windows 10 and 11 PCs. No ...

Windows' built-in BitLocker encryption system has a glaring YellowKey-shaped flaw that Microsoft hasn't fixed yet, but unless ...

A new Microsoft Defender zero-day called RoguePlanet reportedly grants SYSTEM privileges on fully patched Windows 10 and Windows 11 devices.

Microsoft has confirmed CVE-2026-50656, the RoguePlanet Defender zero-day that can grant SYSTEM privileges on Windows 10 and ...

A new Windows zero-day reportedly bypasses BitLocker, adding pressure on Microsoft as researchers debate the exploit’s real-world impact.

Windows 11 version 26H2 is official, new Surface Pro and Laptop, GTA VI preorder, and more stories in this week's Microsoft ...

The long-running feud between Microsoft and security researcher Nightmare Eclipse has entered a new chapter. Eclipse, who has spent the past several months publicly releasing unpatched Windows ...

Update: Added statement from Microsoft to the end of this article. A security researcher has released a new Microsoft Defender zero-day exploit named "RoguePlanet" just hours after Microsoft fixed two ...

The zero-day "nightmare" apparently isn't over for Microsoft, as a disgruntled researcher who's been feuding with the company for the past three months has dropped yet another proof-of-concept (PoC) ...

Among other things, a critical kernel vulnerability threatens Windows 11. Microsoft is also closing zero-day vulnerabilities that became known at the end of May.

Microsoft today released software updates to plug nearly 200 security holes across its Windows operating systems and supported software, a record number of fixes for the company’s monthly Patch ...