Overview On January 14, NSFOCUS CERT detected that Microsoft released the January Security Update patch, which fixed 112 security issues involving widely used products such as Windows, Microsoft ...

Microsoft has patched 112 vulnerabilities in January 2026, including CVE-2026-20805, a Desktop Window Manager zero-day that ...

Microsoft has released an emergency patch for CVE-2026-21509, a zero-day Office vulnerability under active exploitation that ...

Update, April 30, 2025: This story, originally published April 28, has been updated with further information regarding the hotpatching security update service for Windows Server 2025 users, as well as ...

PCWorld reports that Microsoft released critical security updates fixing 15 Office vulnerabilities, including 14 remote code execution flaws affecting Excel, Word, Outlook, and Access. One zero-day ...

Today is Microsoft's December 2025 Patch Tuesday, which fixes 57 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities. This Patch Tuesday also addresses three ...

Microsoft has announced new Windows 365 security defaults starting in the second half of 2025 and affecting newly provisioned and reprovisioned Cloud PCs. The company said these changes include ...

Congratulations to the winners of the 2026 Microsoft Security Excellence Awards that recognize the innovative defenders who ...