Their system still uses the finger, but it is the venous system that is charted and analyzed at the time of the recognition.
It is technically relatively simple to counterfeit a digital fingerprint, it is much more difficult to recopy this system in 3 dimensions and which must have a blood flow to be recognized. Even if the official statement does not mention it since it is unpalatable, since this system does not function on a "dead" body (without going into the details), there is an additional security.
