Secure Boot has been bypassed for years via unrevoked Microsoft-signed shims dating to 2013. Patch Tuesday June 2026 fixes it - but check now.

The images are known as shims, which were invented to extend Secure Boot to Linux devices and utility software. Using a technique simple enough to be performed by novice hackers, these old, forgotten ...

Microsoft has confirmed the August 2024 Windows security updates are causing Linux booting issues on dual-boot systems with Secure Boot enabled. The issue is caused by a Secure Boot Advanced Targeting ...

Linux companies or organisations that have paid for, and obtained, keys from Microsoft to ensure that their distributions can be booted on secure boot-enabled devices, have to abide by the terms of a ...

A Secure Boot update wasn’t supposed to hit dual-boot machines, but it’s now preventing some Linux installs from booting. A Secure Boot update wasn’t supposed to hit dual-boot machines, but it’s now ...

A crucial Windows security certificate just expired - how to check your PC ...

A newly discovered vulnerability in the GRUB2 bootloader, dubbed BootHole, may threaten Linux and Windows machines using Secure Boot. Attackers who exploit it could interfere with the boot process and ...

Facepalm: Microsoft recently released its latest batch of monthly security updates for Windows and other software products. However, a bug fix designed to address a Secure Boot vulnerability ...

Truths about dual booting I learned the hard way.

ESET researchers discovered 11 old, Microsoft-signed, UEFI applications that allow bypassing UEFI Secure Boot on the majority of UEFI-based ...

As Windows 8 gets closer to reality, more details of Microsoft’s make-it-or-break-it effort to translate its desktop computing success to ARM-driven tablets are emerging. First, Microsoft revealed ...