The CVC on the bank card, which stands for Card Verification Code (Card Verification Code), is a set of important numbers located above the signature column on the back of the bank card and is used to confirm the identity of the cardholder. Its main function is to verify the legitimacy of the transaction by providing the last three digits of the verification code when conducting online transactions to ensure account security. When binding mobile banking, users need to provide three key information: card number, validity period and CVC. They also need to enter the transaction password and conduct mobile phone verification to achieve multi-layer identity verification and ensure that only the true owner of the bank card can complete the binding process. . This step is crucial as any missing or incorrect verification information may result in binding failure, thus protecting the cardholder's account from fraud.

The existence of CVC is like a security door set up by the bank. It plays a key role in every online transaction. Therefore, when using bank cards, especially when conducting online transactions or mobile banking operations, be sure to protect CVC to prevent leakage to maintain your financial security. It is important to ensure that all information is filled in correctly to successfully complete the transaction and avoid potential risks.