FaceID can already prevent a device from unlocking if someone is sleeping. In theory devices could detect if they were being unlocked "under duress" by using bi

FaceID can already prevent a device from unlocking if someone is sleeping. In theory devices could detect if they were being unlocked "under duress" by using biometrics to look at facial expressions, heartbeat, etc, and then wipe themselves. I don't know how practical in reality but perhaps it could be a feature you turn on in a sensitive environment.