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Police want the password to your phone (reason.com)

submitted 13 hours ago by [email protected] to c/[email protected]

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[–] [email protected] 0 points 9 hours ago (1 children)

Correct, though it still is saved somewhere. Just like how TPMs in Computers can be exploited as well, this also can be. What I meant in my original comment was that the emergency mode did not clear that hardware chip's storage and do a full encryption of the storage, which others said otherwise.

[–] [email protected] 0 points 8 hours ago* (last edited 8 hours ago)

Ah. Then yeah, emergency mode won't suffice for protecting the full contents of the disk.

I can't say Apple actually does this, but it is possible to protect important data by further encrypting user data with a separate encryption key derived from the passcode, and then clearing the key whenever the screen is locked.