Microsoft's June Patch Tuesday fixed a record 206 vulnerabilities, including an actively exploited Windows Defender flaw.

On a significantly lighter Patch Tuesday than of late, a publicly disclosed and actively exploited zero-day vulnerability in the Windows Secure Boot security feature looks set to cause an ongoing ...

Today is Microsoft's June 2026 Patch Tuesday, with security updates for 200 flaws, including five publicly disclosed zero-day ...

Microsoft this week offered guidance to address a Secure Boot vulnerability in Windows and Linux systems, but it'll likely be a long-term project for IT pros. The issue was identified by Microsoft in ...

Microsoft has released the Windows 10 KB5094127 extended security update, which fixes the June 2026 Patch Tuesday ...

Key takeaways from Microsoft's second Secure Boot AMA. Learn how the June 24 KEK expiration impacts Windows 11 PCs and what ...

Why it matters: Microsoft has issued guidance for fixing a serious Secure Boot vulnerability that affects all Windows systems and is actively being exploited in the wild. Normally, this kind of issue ...

Update: Since publishing this, Microsoft made additional clarifications and corrections which are available below the original article. Microsoft released Patch Tuesday updates for the month of May ...

Researchers have discovered a new malware strain that combines the destructive capabilities of NotPetya, the recoverable encryption functionality of Petya ransomware, and the ability to bypass Secure ...

A recently patched security vulnerability in Unified Extensible Firmware Interface (UEFI) systems could allow attackers to bypass Secure Boot protections and compromise system safety during the boot ...

Hmmm, I'll probably get mass-downvoted for this opinion… but maybe UEFI is trying to do too much? Boot firmware is one of these things you leave well alone unless you really have an egregious problem ...

Microsoft uses Secure Boot to safeguard your Windows PC from malware, attacks, and security vulnerabilities before your operating system fully loads. By default, Secure Boot is enabled on Windows PCs ...