From personal experience, close by people are far more likely to hack you than strangers. Systems should reflect this. For instance, WhatsApp Web shows a promin

From personal experience, close by people are far more likely to hack you than strangers. Systems should reflect this. For instance, WhatsApp Web shows a prominent notification. Signal does not. So one investigative technique is to get someone's phone for a minute, connect Signal to the desktop client, then rather silently have access to their account. When it comes to unlocking phones, I'm far more worried about family, romantic partners, friends' kids playing pranks or trying to get a bit of cash than I am about some organized crime gang or CBP faking my face or fingerprint.