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Reminder that you can press the iPhone power button five times to require passcode for the next unlock.
by mbil 8mo ago
Reminder that you can press the iPhone power button five times to require passcode for the next unlock.
- kstrauser 8mo agoOr 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.
- pkulak 8mo agoOh wow, just going into the "should I shutdown" menu also goes into pre-boot lock state? I didn't know that.
- duskwuff 8mo agoIt doesn't reenter a BFU state, but it requires a passcode for the next unlock.
- snuxoll 8mo agoIt'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.
- overfeed 8mo ago> 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.
- CGMthrowaway 8mo agoThere is a way now to force BFU from a phone that is turned on, I can't remember the sequence
- duskwuff 8mo agoEh? BFU ("before first unlock") is, by definition, the state that a phone is in when it is turned on. There's no need to "force" it. If you mean forcing an iOS device out of BFU, that's impossible. The device's storage is encrypted using a key derived from the user's passcode. That key is only available once the user has unlocked the device once, using their passcode.
- kccqzy 8mo agoIt’s called restarting the phone.
- CGMthrowaway 8mo agoI 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.
- kccqzy 8mo agoThat’s DFU mode. We are talking about BFU in this thread.
- regenschutz 8mo agoSad, neither of those works on Android. Pressing the power button activates the emergency call screen with a countdown to call emergency services, and power + volume either just takes a screenshot or enables vibrations/haptics depending on which volume button you press.
- thallium205 8mo agoOn Pixel phones, Power + Volume Up retrieves a menu where you can select "Lockdown".
- rationalist 8mo agoNot on my Pixel phone, that just sets it to vibrate instead of ring. Holding down the power button retrieves a menu where you can select "Lockdown".
- zerocrates 8mo agoOn my 9 you get a setting to choose if holding Power gets you the power menu or activates the assistant (I think it defaulted to assistant? I have it set to the power menu because I don't really ever use the assistant.)
- rationalist 8mo agoYes, that was the default for me, but I changed it in settings.
- silisili 8mo agoDid you check your phone settings? Mine has an option to add it to the power menu, so you get to it by whichever method you use to do that (which itself is sad that phones are starting to differ in what the power key does).
- paulsmith 8mo agoAlternately, hold the power button and either volume button together for a few seconds.
- tosapple 8mo agoThis is the third person advocating button squeezing, as a reminder: IF a gun is on you the jig is up, you can be shot for resisting or reaching for a potential weapon. Wireless detonators do exist, don't f around please.
- fogzen 8mo agoIn case anyone is wondering: In newer versions of MacOS, the user must log out to require a password. Locking screen no longer requires password if Touch ID is enabled.
- jen729w 8mo agoShift+Option+Command+Q is your fastest route there, but unsaved work will block.
- alistairSH 8mo agoIs that actually true? I'm fairly confident my work Mac requires a password if it's idle more than a few days (typically over the weekend).
- raw_anon_1111 8mo agoSettings -> lock screen -> “Require password after screen saver begins or display is turned off”
- fogzen 8mo agoEven with that option set to "Immediately" you can still use Touch ID after locking.
- raw_anon_1111 8mo agoI am not sure how it works on Macs, but on iPhone, after first unlock after a reboot, it’s trivial for law enforcement to break into your iPhone - the same with Android.
- rawgabbit 8mo agoSerious question. If I am re-entering the US after traveling abroad, can customs legally ask me to turn the phone back on and/or seize my phone? I am a US citizen. Out of habit, I keep my phone off during the flight and turn it on after clearing customs.
- Analemma_ 8mo agoIf you are a US citizen, you legally cannot be denied re-entry into the country for any reason, including not unlocking your phone. They can make it really annoying and detain you for a while, though.
- monocasa 8mo agoThey can also practically keep your phone indefinitely.
- verall 8mo agomy understanding is that they can hold you for a couple days without charges for your insubordination but as a citizen they have to let you back into the country or officially arrest you, try to get an actual warrant, etc.
- direwolf20 8mo agothey can just break the law
- rurban 8mo agoThere is no law when entering the country. They can do everything they want, or making up anything they'll imagine.
- gogasca 8mo ago[dead]
- thecapybara 8mo agoDid you know that on most models of iPhone, saying "Hey Siri, who's iPhone is this?" will disable biometric authentication until the passcode is entered?
- qingcharles 8mo agoEveryone makes this same comment on each of these threads, but it's important to remember this only works if you have some sort of advance warning. If you have the iPhone in your hand and there is a loaded gun pointed at your head telling you not to move, you probably won't want to move.