The Card Security Code is a 3-digit numeric value used to verify the cardholder and reduce fraud risk. It is generated during card production and printed either on the card itself or encoded into the Track 1 and Track 2 data. If this value is encoded into the card's Track data, it is called CVV/CVC; if it is printed on the card, it is called CVV2/CVC2.
Is the card security code used in transactions?
The security code printed on the card (CVV2) is used in e-commerce transactions; the security code encoded in the card's Track1 and Track2 data (CVV) is used in authorizations when the card is used physically.
So what should we do when our card's security code wears off?
Since the security code is information printed on the card, it can wear off due to excessive use or exposure to external factors. In this case, you should call the bank the card is issued by and request a replacement card.
For security reasons, the Expiration Date and Security Code of the newly issued card are generated differently from those of the previous card.
