"As soon as you're caught in the room, cryptography won't help you." Most cryptographers are trained on that separation of concerns. If you're locked in a room, someone can coerce you into handing over your keys, so that part is "out of scope". During three weeks at the Community Privacy Residency, I met a journalist from an occupied territory, and his reality threw the whole distinction out. There were daily roadblocks, with military police doing phone inspections. If you didn't unlock your phone, you were detained and your phone confiscated. If there was an encrypted chat app on your phone,...