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Event Brief

YellowKey zero-day bypasses default Windows 11 BitLocker

A zero-day exploit called YellowKey lets attackers with physical access bypass default Windows 11 BitLocker protections.
WHO: Microsoft
WHAT: Microsoft said it is investigating a zero-day exploit (YellowKey) that bypasses default Windows 11 BitLocker protections.
WHEN: May 14, 2026 at 2:32 PM ET
WHERE: Location not specified
WHY: Microsoft said it is investigating how the YellowKey exploit bypasses default Windows 11 BitLocker protections.

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