Cvv Cvc2 [better] -

| Feature | CVV / CVC2 | PIN | | :--- | :--- | :--- | | | Printed on the card (back or front) | Known only in the cardholder’s mind | | Purpose | Proves you have the physical card for online/phone sales | Proves you are the authorized user for in-person ATM/register sales | | Static/Dynamic | Static (changes only when card expires) | Usually static, but can be changed by user | | Who knows it | The cardholder, the merchant (temporarily), the bank | Only the cardholder and the bank (encrypted) |