This is pretty cool! Wondering about a couple of these features though: locking setup after a forced reset and locking stolen devices which are offline for extended periods. Do these features activate when I determine the phone is stolen? Or do they happen automatically? This might make used phone sales a major PITA if the seller doesn't properly reset it first.
You intentionally fail the biometrics a few times so it locks the device and requires the pin/password. From there it depends on the country. In the US, they can't force you to give up a password, but they can force biometrics. If your country doesn't legally protect you then there's no software measure that can't protect you at that point.
That’s an interesting idea. Pick a weird finger for the biometrics and intentionally use the wrong one if you’re under duress. Fake surprise and astonishment until the device forces you to enter your pin.
What, the cops are going to force you to use the specific correct finger? Great unexpected idea to still use biometrics and have some protection from being compelled to provide your fingerprint.
You'll be able to lock the screen of your phone with just your phone number and a quick security challenge using any device. This buys you time to recover your account details and access additional helpful options in Find My Device, including sending a full factory reset command to completely wipe the device.
Does this mean I can troll my friends by locking their phone while they're using their phone?
Not if it’s implemented correctly. How inconvenient is for your friend just unlock the phone as they normally would? All you have to do is rate limit to something like once a week where it’s effectively useless for harassment.
My impression was not that factory reset is automatic, rather, your device would lock similar to locking your screen normally. Something easy for the legitimate owner to unlock, but nearly impossible for a thief without knowing the pin or having biometrics.
I would hope so as I don’t think that’s necessary to be an effective theft deterrent. I imagine a thief has trouble reselling a stolen phone if you have to flash a custom OS to make it usable. A scary boot loader security warning on every boot should deter most buyers, lowering the value of your stolen item and complicating resale.