The full name of cvc is card verification code, which is the verification code of credit card, usually an additional code printed on the back of credit card; Many people also call it a security code; This set of figures is very important, and it will be used in many foreign consumer occasions, and it is also necessary to prevent leakage.

The cvc code is displayed on the back of the credit card with the signature in italics. Generally, the first four digits are the card number, and the last three digits are the verification codes for commercial banks to ensure the security of credit card passwords. In normal times, many people will hide the last three to prevent leaks from being stolen. This is because the last three digits can make credit card consumption (abroad) by adding the validity period and card number.

In normal times, in order to prevent the security code from leaking, many people will stick the security code with a small piece of tape, so as to prevent it from leaking.

When using a credit card in China, be sure to cover it with your hand to prevent the password from being leaked. Also, don't stay away from the line of sight when swiping the card. You can change your password at any time when you use it at ordinary times to prevent your credit card from being stolen.