AI-powered fileless malware is changing what it means to keep a Windows 11 PC secure. Here's what's happening and what to do.

Overview On March 11, NSFOCUS CERT detected that Microsoft released the March Security Update patch, which fixed 83 security issues involving widely used products such as Windows, Microsoft Office, ...

In April 2026, Microsoft is blocking old kernel drivers in Windows, closing a vulnerability that's been exploited for years.

Microsoft releases an out-of-band hotpatch for critical Windows 11 RRAS vulnerabilities that could allow remote code execution through malicious remote servers.

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 ...

Microsoft has released an out-of-band security update for certain Windows 11 users that fixes three critical enterprise ...

ClickFix attack employs fake Windows security udpates. Updated November 27 with another Windows update warning, along with threat intelligence from the Acronis Threat Research Unit regarding the use ...

Last summer's CrowdStrike meltdown caused billions of dollars in damage and exposed some fundamental architectural flaws in the Windows platform. A single flawed update from one vendor was enough to ...

Microsoft Corp. announced a series of advancements in its security strategy at its annual Ignite Conference in Chicago today, all aimed at enhancing protection across its ecosystem. The updates focus ...

Windows 11 Pro combines useful built-in security with AI tools to protect your data and streamline how you work every day.

How to check your Windows PC for expiring security certificates - a big one is ending soon ...