Heart Size: Yet Another Biometric

Turns out that heart size doesn’t change throughout your adult life, and you can use low-level Doppler radar to scan the size — even at a distance — as a biometric. Research paper (to be available soon)….

Turns out that heart size doesn't change throughout your adult life, and you can use low-level Doppler radar to scan the size -- even at a distance -- as a biometric.

Research paper (to be available soon).

from https://www.schneier.com/blog/