The last three digits of the signature column on the back of the credit card are the password verification code for card-free transactions, which is used by cardholders to verify their identity when making card-free consumption. Need to be reminded that once the cardholder reveals these three figures, it is easy to cause the amount in the card to be stolen!

The last three digits of a credit card are called "the last three digits". In the process of using credit card, there is a kind of "payment without card", which can be completed by providing the card number and the last three codes. For example, if you buy a plane ticket, you can pay successfully by choosing a card-free payment method and providing information such as card number, expiration date, cardholder's name and verification code.