The visa verification service of CITIC Bank's credit card is VBV service. Its function is: the VBV operating platform can be connected online through the network, which ensures that VISA customers and online specialty stores participating in online transactions are authorized by the bank in real time, and also protects the information input by Visa customers during online transactions, so that it will not be leaked or changed during network transmission. Customers only need to log in to CITIC Bank Credit Card Online Banking to start using this service for free immediately.