Device Lock State
N/A
设备锁定状态
Device Lock State · N/A · 设备锁定状态 · dih-VYS lok stayt · before first unlock · after first unlock · BFU AFU · Cybersecurity · mobile-forensics · encryption · accessCybersecuritybefore first unlock after first unlock BFU AFU/dih-VYS lok stayt/
Also known as: before first unlock, after first unlock, BFU AFU
Last updated August 9, 2026
Definition
Device lock state (before/after first unlock) affects what encrypted data mobile forensic tools can access — many keys only unlock after the correct passcode is entered post-boot.
Real-World Example
A phone seized while powered on and unlocked often yields more data than the same phone cold-booted to a lock screen.
References
Related terms
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