Since you're on grapheneos you could always set up the 2 factor unlock when using biometrics. You would then unlock your phone using fingerprint and a pin. This way even if you're forced to unlock the device they'd still need your secondary pin to unlock. The pin can be much shorter than your main password so its still fast to unlock.
Wow ty , had mine off for unlocking screen since i got this phone , wasnt visible until i turned on unlock with fingerprint :)
wow I've been waiting for this feature on smartphones.... feels like been waiting for centuries!
thank you for bringing this up!
As others have said, the most secure option is to not use biometrics.
However an app like private lock might be a decent compromise
Edit: I just noticed that private lock seems to not have a new release in a few years and should probably be considered orphaned. So I might recommend ParanoidsPal-PrivacyLock instead
Great app, just installed it. The default amount of movement is perfect. Now it's really easy to prevent being physically forced to unlock, and theft
I use Paranoid's Pal, a similar app. It's great. In addition to locking in response to motion, I have it set to automatically lock the phone a few minutes after the screen turns off.
automatically lock the phone a few minutes after the screen turns off
Isn't the default behaviour of phones to lock as soon as the screen turns off?
You can set your phone to do that, of course, but I prefer not to have to unlock mine when I've just used it.
Im not an android dev but I think the difference here is it's a secure lock. Which means that encryption is engaged and requires the decryption string to unlock which means that biometrics are not asked for.
Mine doesn't.
This also seems nice. I'll probably test this one as well. I like the lock after x amount of time feature. The pictures have max 15 minutes, so that might be too little, but maybe it'll work
Isn't this basically the same as Android's theft detection lock?
I am running stock Android and have no idea what that is. But this forces your phone to use your none biometrics unlock after it senses acceleration.
Requirements - Device admin permission for locking screen.
Does this mean it requires root access (which brings additional security concerns) or just that a non-restricted user needs to set it up?
It doesn't require root. Device admin is different.
I currently run this app on android 15 without root and it runs very well. However I just noticed that it seems to not have a new release in a few years and should probably be considered orphaned. So I might recommend ParanoidsPal-PrivacyLock instead.
Good to know, thanks!
Well, you could use the wrong finger. After 3 attempts, my GrapheneOS install brings up the password field, but you can go back to the lock screen and try 2 more times until it locks out of fingerprint unlock (so 5 times total). You could always hold the power button down while it's in your pocket or bag, pretending you are searching for the phone or something, and then lock it down as soon as you lift the screen up.
Thats kinda interesting. If I use an unusual finger, and there is a limited amount of tries. I still get somewhat the convenience of biometrics, but can still massively increase the odds of too many attempts.
That’s what I did when I had a fingerprint reader— I used a non-tip part of one of my fingers. So if “forced” I’d just work my way through my fingertips and it would lock out.
This had the benefit that if someone had already watched which finger I used in the past, the print still wouldn’t match.
Disable biometrics.
Carry a lighter to remove your fingerprints if captured?
I don’t get this thread… if you’re captured they can ask for anything
And in many circumstances you can choose/have a right not to answer.
I would imagine you also have the right not to act
Else... they can just force you to enter the code the same way as they can force you to put your finger on the screen... or force you to look at the screen
Just... dont use biometrics for device unlock?? You can still use it for apps separate from device unlock
Of course I can do this, but that is a major inconvenience when I unlock my phone hundreds of times per day.
Its built in in GOS. And duress pin as well. Best middleground for security, you can still use fingerprint for apps.
In stock android 15 it looks like this.
Seems it found its way there as well then. Think it was a GOS thing on 14
Ether way the new American government will threaten you with your family's death until you gave them the password
How long does lockdown take for you?
It takes me less than 2 seconds (i checked).
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