3 ms·
... Every 6 days from point of collection: Place phone in caged room. Turn on your cell phone network interceptor device. Set interceptor's network time to dev
by wstuartcl 8y ago
...
Every 6 days from point of collection:
Place phone in caged room.
Turn on your cell phone network interceptor device.
Set interceptor's network time to device collection time.
boot phone, await for it to update network time from cell interceptor.
...
So many edge cases/ways to defeat this that need to be handled.
- tonyarkles 8y agoUnless it's actually just got a counter that counts up from the last time it's been unlocked. Powering it down wouldn't save you, because it requires an unlock at boot anyway.
- archi42 8y agoIf I understand iOS correctly, the reboot will cause the data partition to be strongly encrypted -- so that's worse. But maybe the device can be tricked into time passing reaaally slow?
- kstrauser 8y agoType "uptime" in your computer. Change the date. Run "uptime" again and note that it is the appropriate amount of time longer than the first report, even though the date is different. It's not always useful to assume that engineers will miss even the most obvious workarounds.
- keiyakins 8y agoOr it's checking the monotonic time, not using the synchronized time (which is probably recorded as an offset anyway)