Microsoft has been attempting to patch a serious Secure Boot vulnerability that can be exploited to bypass the security feature and install rootkits and bootkits on Windows devices. Researchers believe the security flaw cannot be fully patched.
Secure Boot is a UEFI (Unified Extensible Firmware Interface) feature that should prevent unauthorized programs or drivers from being loaded during the boot process of devices running Windows 8 and later. The feature is designed to ensure that every component loaded at boot is signed and validated.
Continued: http://www.securityweek.com/secure-boot-vulnerability-exposes-windows-devices-attacks
Related:
Microsoft Mistakenly Leaks Secure Boot Key
https://threatpost.com/microsoft-mistakenly-leaks-secure-boot-key/119828/

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