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Personal Identity Number (PIN)

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Personal Identity Number (PIN) - definition(s)

PIN (Personal Identity Number) - This is usually four digits for credit and debit cards.   It replaces the password in situations where a full keyboard is not available to the user, or where the system security mechanism can invalidate the user's identity very quickly if the wrong values are entered.   Commonly three attempts are allowed to enter a correct PIN, and if they all fail the PIN is revoked and the user (card holder) is informed that they must contact the issuer before they can do anything.   Like the password and passphrase, a PIN should never be given to anyone else no matter what plausible reason they seem to have.

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Source: Arctic Soft, 07 August 2011 09:15:36, External 


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