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What are the three ways to authenticate a person?

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posted Aug 28, 2017 by anonymous

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Three common ways to authenticate a person:

  1. Something you know (E.g. Password)
    A user must know in order to login: ID, Password, PIN.
  2. Something you have (E.g.Token)
    Anything a user must have in his possession to log in: One time password (OTP tokens), smartphones with OTP Apps, Employee ID card.
  3. Something you are (E.g. Fingerprint/Bio metric)
    Biological traits a user has that are confirmed for log in: Retina scan, Fingerprint scan, Facial recognition, Voice recognition.
answer Aug 29, 2017 by Ajay Vg
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