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Microsoft's Secure Boot has been broken for most of its existence

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

Forgotten UEFI shims undermining Secure Boot

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