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Zero-Day Exploit Against Windows BitLocker

ID: cfb485d4-6e8a-5fac-8524-9ca653176be8

STIX ID: report--cfb485d4-6e8a-5fac-8524-9ca653176be8

Feed Name: Schneier on Security

Threat Score
70/100

Date Published: 2026-05-18

Date Updated: 2026-05-18

Author: Bruce Schneier

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A zero-day exploit named YellowKey, published by a researcher using the alias Nightmare-Eclipse, reportedly and reliably bypasses default Windows 11 BitLocker full-disk encryption (TPM-based) and was posted to GitHub; the exploit requires physical access to the target machine.

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