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[return to "FBI couldn't get into WaPo reporter's iPhone because Lockdown Mode enabled"]
1. nova22+qq[view] [source] 2026-02-04 16:29:22
>>robin_+(OP)
Remember...they can make you use touch id...they can't make you give them your password.

https://x.com/runasand/status/2017659019251343763?s=20

The FBI was able to access Washington Post reporter Hannah Natanson's Signal messages because she used Signal on her work laptop. The laptop accepted Touch ID for authentication, meaning the agents were allowed to require her to unlock it.

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2. mbil+hv[view] [source] 2026-02-04 16:49:07
>>nova22+qq
Reminder that you can press the iPhone power button five times to require passcode for the next unlock.
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3. kstrau+Dz[view] [source] 2026-02-04 17:09:53
>>mbil+hv
Or squeeze the power and volume buttons for a couple of seconds. It’s good to practice both these gestures so that they become reflex, rather than trying to remember them when they’re needed.
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4. pkulak+iG[view] [source] 2026-02-04 17:39:25
>>kstrau+Dz
Oh wow, just going into the "should I shutdown" menu also goes into pre-boot lock state? I didn't know that.
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5. duskwu+RM[view] [source] 2026-02-04 18:05:33
>>pkulak+iG
It doesn't reenter a BFU state, but it requires a passcode for the next unlock.
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6. snuxol+n31[view] [source] 2026-02-04 19:14:53
>>duskwu+RM
It's close enough, because (most of) the encryption keys are wiped from memory every time the device is locked, and this action makes the secure enclave require PIN authentication to release them again.
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7. overfe+gb1[view] [source] 2026-02-04 19:57:27
>>snuxol+n31
> It's close enough

Not really, because tools like Cellbrite are more limited with BFU, hence the manual informing LEO to keep (locked) devices charged, amd the countermeasures being iOS forcefully rebooting devices that have been locked for too long.

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8. CGMthr+Gm1[view] [source] 2026-02-04 20:45:55
>>overfe+gb1
There is a way now to force BFU from a phone that is turned on, I can't remember the sequence
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9. kccqzy+fK1[view] [source] 2026-02-04 22:44:05
>>CGMthr+Gm1
It’s called restarting the phone.
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10. CGMthr+Mj3[view] [source] 2026-02-05 12:39:56
>>kccqzy+fK1
I believe doing the standard Restart everyone knows is not enough though. The instructions saw were these

Quick-press Volume Up, then Quick-press Volume Down. Hold the side power button until the screen turns black (approx. 10 seconds). Immediately hold both the side button and the Volume Down button for 5 seconds. Release the side button but continue holding the Volume Down button for another 10 seconds. The screen will remain black. If the Apple logo appears, the side button was held too long, and the process must be repeated.

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