ESET found 11 Microsoft-signed UEFI shims, some over a decade old, that let attackers bypass Secure Boot without a single new ...
Morning Overview on MSN
Microsoft says a Secure Boot certificate expires this month and PCs need to act
Millions of PCs running Windows face a ticking clock as certificates that anchor the Secure Boot trust chain are set to expire in 2026, and the first deadline arrives in June. The issue, tracked in ...
Old UEFI shim bootloaders could be abused to bypass Secure Boot on any UEFI-based machine, regardless of the operating system ...
But this Windows security feature provides a vital protection against dangerous malware—one some PCs have just lost. So what ...
Eleven old Microsoft-signed UEFI shims could let admin-level attackers bypass Secure Boot and run code before the operating system loads ...
ESET researchers discovered 11 vulnerable UEFI shim bootloaders signed by Microsoft that allow attackers to bypass UEFI ...
Eset identified 11 Microsoft-signed legacy UEFI shim bootloaders vulnerable to CVE-2026-8863, enabling attackers to bypass ...
A crucial Windows security certificate just expired - how to check your PC ...
Microsoft has confirmed that Secure Boot certificate updates are failing or being blocked on some Windows 11 PCs.
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