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Diagram illustrating Terminal PIN Key (TPK) usage in POS and ATM devices

HSM & Security

What is TPK (Terminal PIN Key)?

TPK stands for Terminal PIN Key. It is a data encryption key used to encrypt PINs for transmission between a terminal and the terminal's bank (acquirer) within a local network. Learn how TPK is used in POS and ATM devices.

Diagram explaining how the CVV/CVC code is generated and verified on payment cards

Credit Card

What is CVV/CVC?

CVV is short for Card Verification Value, a term used by Visa. CVC is short for Card Verification Code, a term used by MasterCard. The CVV/CVC code is used for cardholder verification and to reduce fraud risk.