Personal Identification Number usually consisting of 4 numbers used to authenticate Debit (Check Card) transactions with no signature or AVS required. Secret numeric password known only to the user and a system to authenticate the user to the system. The user is only granted access if the PIN the user provided matches the PIN in the system. Typical PINs are used for automated teller machines for cash advance transactions. Another type of PIN is one used in EMV chip cards where the PIN replaces the cardholder’s signature.
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