It is hit or miss. The fingerprint button is also looking for the electrical signals of a living person. Apparently, that doesn’t end immediately upon death.
Source? Sounds like scifi movie stuff to me, but I’d be interested to read/see more about it
Your body doesn’t all die at once. The parts that need a constant flow of oxygen die within minutes, while some parts take hours. Tissues like skin, tendons and heart valves are viable for harvest for as long as 48 hours after death.
https://australian.museum/about/history/exhibitions/death-the-last-taboo/decomposition-body-changes/
I don’t know how long a fingerprint would work after death though. I imagine it depends on the type of scanner. An optical scanner would probably not care. I’m not sure about ultrasonic. Thermal and capacitive would probably stop working within minutes of death.
Lol not that. I’m well aware of that. I meant a source for “fingerprint readers are looking for an electrical signal too” as I’m very sure I’ve heard about them being defeated with a high enough quality reproduction of the finger (read: not flesh at all, let alone alive)
https://mashable.com/article/smartphone-biometrics-dead-body-touch-id-face-id
Might be outdated, though
