Why you should care about biometrics

"Biometrics can be described as either the study of biological measurements, or the use of those measurements to identify people or verify them. Voice, fingerprints, hand geometry, face, signature, iris and gait can all be measured and used for identification and authentication. "

https://resources.zdnet.co.uk/articles/faq/0,1000001997,39284593,00.htm

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