The CVC of a credit card is the last three digits of the signature line of the credit card. There are usually 7 italic digits at the top of the back of the credit card at the end of the cardholder's signature. The first four digits are the last four digits of the card number, and the last three digits are the credit card verification code, or CVC code.

CVC (Card Verification Code) is an additional code printed on the back of the credit card. It is also called CVV (Card Verification Value), which is the credit card verification value. It is also called CID, which is the credit card security code or Personal Security Code, etc., all names refer to the same verification code.

Extended information:

Credit card security code: It is a set of 3 or 4 digits on the credit card. The generation method is that the bank extracts the card account number, validity period, and service code, arranges them, and then calculates them through a series of complex algorithms. After this set of numbers is generated, only the issuing bank and the bank card holder know what the number is.

Purpose:

The credit card security code is equivalent to the credit card’s ID card. We can use this code to conduct consumer transactions. Shopping on overseas websites does not require a password. As long as the buyer provides an account number and security code, the transaction can be completed. In China, there are also merchants that have signed contracts with banks to complete phone transfers without a credit card password and only with a security code.

Reference: Baidu Encyclopedia-Credit Card Security Code