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UEFI bootkit infected fully patched Windows machines. Is Microsoft to blame?

Ars Technica • Tue, 03 Nov 2026

UEFI bootkit infected fully patched Windows machines. Is Microsoft to blame?

UEFI bootkit BlackX exploits Microsoft's lack of clarity around Secure Boot protections.

What happened?

UEFI bootkit BlackX exploits Microsoft's lack of clarity around Secure Boot protections.

Story details

UEFI bootkit BlackX exploits Microsoft's lack of clarity around Secure Boot protections.

Why it matters

This story helps build a stronger internal English tech archive around Technology, giving search visitors more reasons to keep browsing the site instead of bouncing after a single headline.

Original source

https://arstechnica.com/security/2026/11/uefi-bootkit-infected-fully-patched-windows-machines-is-microsoft-to-blame/