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iPhones now auto-restart to block access to encrypted data after long idle times

ID: 68f0aeca-f31d-590c-b3dc-5addde5377b7

STIX ID: report--68f0aeca-f31d-590c-b3dc-5addde5377b7

Feed Name: Bleeping Computer

Date Published: 2024-11-12

Date Updated: 2026-04-20

Author: Sergiu Gatlan

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Apple introduced an iOS 18.1 “inactivity reboot” that automatically restarts idle iPhones, clearing in-memory encryption keys and shifting devices from AFU to BFU to strengthen at-rest data protection and make forensic or unauthorized data extraction more difficult, as observed by researchers and law enforcement.

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