Comment on Android phones will soon reboot if they’re locked for a few days
M154nthr0p3@lemmy.world 10 hours agoThis podcast goes into the reasons that rebooting a locked phone can improve security.
[The 404 Media Podcast] How Apple is Locking Out Cops #the404MediaPodcast podcastaddict.com/…/185990070 via @PodcastAddict
My take is, it’s harder to unlock/hack a phone when it is in the locked state after booting up. This state is somehow different than the booted locked state.
Why, is above my understanding.
MegaUltraChicken@lemmy.world 9 hours ago
Basically, the tools that LE uses to unlock devices uses exploits that require the device to be in what’s called an AFU (after first unlock) state. The data on the device is encrypted prior to that first unlock after you boot. If the device is in a BFU state (before first unlock) Cellebrite/Greykey (by far the primary tools used in this space) basically hit a wall.
sem@lemmy.blahaj.zone 6 hours ago
Elsewhere in the thread they explain because decryption takes time, they don’t cycle it every time you lock your phone by default. Not sure if there’s more to it.
twice_hatch@midwest.social 5 hours ago
The time needed for key derivation aka key stretching may be a factor, but also in the BFU state I think apps don’t run and you don’t get notifications, since most of the files are still locked
M154nthr0p3@lemmy.world 6 hours ago
Thank you for elaborating.