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In other words, don't enable touch id or face unlock.

cmsimike 9y ago
on iOS anyway, you can enable face id/touch id but specifically disable it from being able to log into the phone with it. You can then use face/touch id for authentication in apps.
komali2 9y ago
I'm trying to find the article now, but I recall reading that in the USA it's a lawful order to have you unlock your phone with a thumbprint, but not to unlock with a PIN code. God knows why. Here: https://blogs.wsj.com/digits/2014/10/31/judge-rules-suspect-can-be-required-to-unlock-phone-with-fingerprint/ https://blogs.wsj.com/digits/2014/10/31/judge-rules-suspect-... Unsure about federal application, actually. We as country need to get our shit together regarding device privacy. You should need a warrant to look at a phone, laptop, whatever, with or without a password. The security of the device should be meaningless. As for me, I'm grateful that I have the resources to push back should this ever happen to me, jailtime or included. That's a luxury probably very few Americans can realistically afford (seeing as they can just throw you in jail for 48 hours).
- saagarjha 9y ago
  > I recall reading that in the USA it's a lawful order to have you unlock your phone with a thumbprint, but not to unlock with a PIN code. God knows why. I believe the rationale was that they can't ask you to incriminate yourself (give up your passcode), but you don't have to say anything for them to force you to give your fingerprint.
  - skrowl 9y ago
    My understanding is that it stemmed from them being able to compel you to take your fingerprints. In the old days you'd put your fingers in ink then put them on paper so they could record your fingerprint. I guess a judge ruled that putting your thumb on your phone isn't substantially different than that. That said, you shouldn't ever rely solely on biometrics. In addition to the legal reason, an adversary could also unlock your phone if you were unconscious / etc using your thumb.
r00fus 9y ago
Or at any checkpoint, simply shut down your device (or click power button 5x). Then they can have it, but it requires a passcode that is protected by the 5th amendment.
- saagarjha 9y ago
  On iPhone X, all you have to do is "squeeze" the phone, or press the side and volume buttons at the same time.
deleted 9y ago
[deleted]

on iOS anyway, you can enable face id/touch id but specifically disable it from being able to log into the phone with it. You can then use face/touch id for authentication in apps.

komali2 9y ago

I'm trying to find the article now, but I recall reading that in the USA it's a lawful order to have you unlock your phone with a thumbprint, but not to unlock with a PIN code. God knows why. Here: https://blogs.wsj.com/digits/2014/10/31/judge-rules-suspect-can-be-required-to-unlock-phone-with-fingerprint/ https://blogs.wsj.com/digits/2014/10/31/judge-rules-suspect-... Unsure about federal application, actually. We as country need to get our shit together regarding device privacy. You should need a warrant to look at a phone, laptop, whatever, with or without a password. The security of the device should be meaningless. As for me, I'm grateful that I have the resources to push back should this ever happen to me, jailtime or included. That's a luxury probably very few Americans can realistically afford (seeing as they can just throw you in jail for 48 hours).

saagarjha 9y ago
> I recall reading that in the USA it's a lawful order to have you unlock your phone with a thumbprint, but not to unlock with a PIN code. God knows why. I believe the rationale was that they can't ask you to incriminate yourself (give up your passcode), but you don't have to say anything for them to force you to give your fingerprint.
- skrowl 9y ago
  My understanding is that it stemmed from them being able to compel you to take your fingerprints. In the old days you'd put your fingers in ink then put them on paper so they could record your fingerprint. I guess a judge ruled that putting your thumb on your phone isn't substantially different than that. That said, you shouldn't ever rely solely on biometrics. In addition to the legal reason, an adversary could also unlock your phone if you were unconscious / etc using your thumb.

r00fus 9y ago

Or at any checkpoint, simply shut down your device (or click power button 5x). Then they can have it, but it requires a passcode that is protected by the 5th amendment.

saagarjha 9y ago
On iPhone X, all you have to do is "squeeze" the phone, or press the side and volume buttons at the same time.

deleted 9y ago

[deleted]