The CVC of a credit card is the last three digits of the credit card signature column. Generally, there are 7 italicized digits above the cardholder's signature on the back of a credit card, of which the first four digits are the last four digits of the card number, and the last three digits are the credit card verification code, that is, CVC code.

CVC (Card Verification Code) is an additional code printed on the back of a credit card, also known as CVV (Card Verification Value) or CID (Credit Card Security Code or Personal Security Code). All names refer to the same verification code.

Extended data:

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

Use:

The credit card security code is equivalent to the credit card ID card, and we can use this code for consumer transactions. You don't need a password to shop on overseas websites. As long as the buyer provides the account number and security code, the transaction can be completed. In China, there are also merchants signing contracts with banks, but you don't need a credit card password, you only need a security code to complete the telephone transfer.

References:

Baidu encyclopedia-credit card security code