The security code of CCB’s credit card, that is, the protection code on the card, is crucial to card security. It is located on the face of the credit card and is usually a 7-digit number. The first 4 digits are the same as the last 4 digits of the credit card number, and the last 3 digits are a special security check code.

The function of the security code is similar to the personal identification of a credit card. Whether it is conducting password-less transactions on overseas shopping websites or making phone transfers at some domestic merchants that support this function, it plays an important role. A key player in determining whether a transaction can proceed. There is no need to enter a password, just provide the account number and security code, and the transaction can be completed smoothly.

It is worth noting that although security codes and CVV codes have similar functions, they are generated in different ways. The CVV code is fixed information in the magnetic strip, while the security code is written directly on the surface of the card. The bank will use a complex algorithm to combine the card information and validity period to generate this unique verification code. Only the issuing bank and the cardholder know the specific value.

If you need to use a security code, just look for the 3 numbers on the back of your credit card; they are your credit card security. Remember, keep the security code properly to ensure safe transactions.