Basically, a verbal voice print-authenticated lockdown code, delivered via your digital assistant (Siri, Google Assistant, Alexa, etc) which immediately locks the phone down and disables biometric unlocking.-- 21 Quest, Aug 11 2023 Security https://xkcd.com/538/ [Voice, Aug 11 2023] A modern-day panic PIN Could be interesting. Law enforcement might not care for it though.-- RayfordSteele, Aug 11 2023 I was debating with myself on calling it Verbal Panic PIN.-- 21 Quest, Aug 11 2023 Nice, esp. if les enfants get hold of your work phone and start trying to find Farmville, par example.
Unfortunately, Le Loi already has deep-fake AI tech and can reverse engineer this p.d.q, especially if you've ever spoken aloud around your always-on phone.
I'd use it anyway, since power-outage (usually) weather-related technology 'supply chain issues' happen more and more often. (side note: do new cars just stop when they lose internet connectivity during a wildfire, insurrection or other crisis?)
Lock down phrase must include words you've never said before, in an unexpected order, for maximum bafflement.-- Sgt Teacup, Aug 11 2023 Id make the phrase I cant, the face I D is broken - though this may be only a small obstacle to someone who wants to force my compliance. Couple this with the aforementioned "Panic PIN" - once primed by that lock phrase, entering the panic PIN or even an incorrect pin may be programed to wipe the device, trigger a siren, explode*, etc.
Fun fact, courts in U.S.A have upheld the notion that police may NOT legally compel someone to unlock a devices via password or PIN - but ARE allowed to force them to unlock via fingerprint or facial recognition.
* Explosions make everything better-- a1, Aug 11 2023 I'd seen something about that, regarding the courts and police. It's part of what prompted the idea. I don't *think* they're allowed to gag you.-- 21 Quest, Aug 11 2023 It's a good idea but only if it's permanent and irrevocable. Otherwise, linky-- Voice, Aug 11 2023 When I conceived the idea initially I thought of that and considered making a visit to a store that sells them necessary to show ID and have it unlocked, but then I remembered how often certain digital assistants like Bixby and Siri get activated by the wrong person's voice, and so the chance of it accidentally being duress locked is a little too high to make that an easy sell to consumers. That'd happen exactly once before I threw it out a window.-- 21 Quest, Aug 11 2023 random, halfbakery