1. The credit card security code is equivalent to the credit card’s ID card. You can use this code to conduct consumer transactions. There are merchants in China that have signed contracts with banks and can complete phone transfers without a credit card password and only with a security code.

2. Therefore, everyone must take good care of their credit cards and do not let them out of their sight when making purchases to avoid others remembering your credit card account number and security code.

3. It should be noted that many credit card theft cases online are related to credit card security codes. Many illegal methods will use security codes to universal bank security authentication to conduct illegal consumption and cash out. Therefore, we must pay more attention to the use of credit card security codes and not easily leak them to outsiders.