Microsoft has blocked credential autofill on Windows 11 to address CVE-2026-20804, a Windows Hello vulnerability allowing biometric injection attacks.
Microsoft's KB5077181 security update has caused endless restart loops and system lockouts for Windows 11 users, with no official fix released as of February 13.
February 2026 Patch Tuesday restricts Windows credential autofill to fix a Windows Hello input injection flaw (CVE-2026-20804).
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