ESET found 11 Microsoft-signed UEFI shims, some over a decade old, that let attackers bypass Secure Boot without a single new ...

Old UEFI shim bootloaders could be abused to bypass Secure Boot on any UEFI-based machine, regardless of the operating system ...

The images are known as shims, which were invented to extend Secure Boot to Linux devices and utility software. Using a ...

Some Windows 11 Secure Boot certificate errors, including BitLocker recovery loops and stuck KEK updates, remain unresolved ...

Linux has a new Secure Boot problem. But it's not nearly as bad as some people make out. Here's what you can do to address the issue. Back in the late 2000s, computer firmware was moving from legacy ...

Attackers could bypass UEFI Secure Boot on a wide range of systems thanks to 11 Microsoft-signed UEFI shim bootloaders ...

Some signed third-party bootloaders for the Unified Extensible Firmware Interface (UEFI) could allow attackers to execute unauthorized code in an early stage of the boot process, before the operating ...

As it turns out, the batch of expiring Secure Boot certificates isn't the only Secure Boot-related concern that Microsoft and the public need to worry about this year. ESET Researchers have uncovered ...

The developers of the BlackLotus UEFI bootkit have improved the malware with Secure Boot bypass capabilities that allow it to infect even fully patched Windows 11 systems. BlackLotus is the first ...

ESET researchers discovered 11 vulnerable UEFI shim bootloaders signed by Microsoft that allow attackers to bypass UEFI ...

Bottom line: Microsoft has addressed a significant security vulnerability that left Windows 11 open to malware attacks at one of the system's most critical levels for more than half a year. It's ...