Editing Personal identification number (section)

=== PIN usage===
In the context of a financial transaction, usually both a private "PIN code" and public user identifier are required to authenticate a user to the system. In these situations, typically the user is required to provide a non-confidential user identifier or token (the ''user ID'') and a confidential PIN to gain access to the system. Upon receiving the user ID and PIN, the system looks up the PIN based upon the user ID and compares the looked-up PIN with the received PIN. The user is granted access only when the number entered matches the number stored in the system. Hence, despite the name, a PIN does not ''personally'' identify the user.<ref>[http://webb-site.com/articles/identity.asp Your ID number is not a password], Webb-site.com, 8 November 2010</ref> The PIN is not printed or embedded on the card but is manually entered by the cardholder during [[automated teller machine]] (ATM) and [[point of sale]] (PO) transactions (such as those that comply with [[EMV]]), and  in [[card not present]] transactions, such as over the Internet or for phone banking.