I don’t have time to read this currently but I will try to later. In the meantime, does anyone know how they are coercing access to these devices? I’ve done a fair amount of international travel and no one has ever asked about any of my devices, much less attempted to gain access to them. It’s my understanding that if you refuse them there’s no legal reason they could refuse you entry.
Obviously, legality is of less concern to this administration but these people should have legal recourse, at least until the facade of civility is completely cast aside.
This won’t stop the cops from hacking into your phone with celebrite, but android has a feature called lockdown mode that will disable facial recognition, fingerprints, and voice ID until your phone is unlocked via PIN. I need to unlock my phone quickly throughout the day, so I use fingerprint - but I use lockdown if I get pulled over or am going through security, etc. It isn’t perfect, but it’s better (for me) than having to enter a long PIN every time I need to unlock my phone.
Once you enable it in settings, you can take your phone to the power off/restart menu and enable lockdown.
Using Tasker, you could probably disable quick unlock when outside of your house, etc.
Do a restart (even if you have to hold the power button for 10 seconds). Because at initial boot state, the contents of your phone are encrypted. Any unlocks after the initial unlock, your phone is decrypted and the key is in RAM. Only a password/pin (no fingerprint/FaceID/etc) can be used to decrypt your data.
In lockdown mode, my understanding is that you’re simply disabling biometrics (but not encrypting anything).