Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2 ...

Make sure you've updated before the deadline.

Microsoft is taking its time with the boot certificate rollout, but you don't have to. Activate the latest UEFI CA 2023 right ...

ESET Research has discovered new ransomware samples, which it has named HybridPetya, resembling the infamous Petya/NotPetya malware. They were uploaded to VirusTotal in February 2025. HybridPetya ...

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 ...

Researchers on Wednesday announced a major cybersecurity find—the world’s first-known instance of real-world malware that can hijack a computer’s boot process even when Secure Boot and other advanced ...

Microsoft has begun rolling out updated Secure Boot certificates through monthly Windows updates to replace the original 2011 certificates that will expire in late June 2026. Microsoft has started ...

The functionality of the bootkit and its individual features make ESET Research believe that it is a threat known as BlackLotus, a UEFI bootkit that has been sold on hacking forums for USD$5,000 since ...

Why it matters: Discovered in October 2022, BlackLotus is a powerful UEFI-compatible bootkit sold on underground marketplaces at $5,000 per license. The malware provides impressive capabilities, and a ...

Find the Secure Boot option and change it to Disabled. Save the changes and reboot again. We recommend keeping Secure Boot enabled unless you're sure it needs to be disabled. This article explains how ...

UEFI (Unified Extensible Firmware Interface) is the open, multi-vendor replacement for the aging BIOS standard, which first appeared in IBM computers in 1976. The UEFI standard is extensive, covering ...