Quality readers sense the temperature and pulse of the finger to make use of a fake more difficult. If higher security is wanted, a guard should be employed to make sure that the fingers are real.
Iris scan readers can also flash a light and measure how the pupil diameter changes in response.
Quality readers sense the temperature and pulse of the finger to make use of a fake more difficult. If higher security is wanted, a guard should be employed to make sure that the fingers are real. Yep, pulse & temperature are more difficult to include in the fake. My question is, what are these readers being used to protect?
Per the iris readers, that I don't like. Something goes wrong and my eyesight is harmed? Nope, not acceptable.