The inquiry password of the Bank of Communications credit card master card is the password set when the credit card is activated, and can only be used for inquiry. 1. Each bank card of Bank of Communications has two passwords: inquiry password: it can only be used for inquiry; Transaction password: you must use the transaction to withdraw money. 2. The inquiry password is set when you open the card. It is 6 digits, which is often used in telephone inquiry. If it is not set when you open the card, you will be prompted to set the inquiry password when you fight for credit card customer service. At this time, you can also set it. Press the voice prompts to make relevant settings. Solution for forgetting the password of Bank of Communications's credit card: 1. If you accidentally forget the inquiry password, you can call the 24-hour customer service hotline shown on the back of the credit card and check the inquiry password after entering the card number. Press the "*" key to reset your inquiry password, and your inquiry password will take effect immediately after setting. 2. If you forget your transaction password, you can call the 24-hour customer service hotline shown on the back of the credit card to apply for resetting the transaction password, and your new transaction password will take effect immediately. 3. If you forget your online payment password: You can log in to the online banking with SMS password or certificate authentication, click the "Modify" button in the "Online Payment" field in the "Customer Service" menu, and then check "Reset Credit Card Online Payment Password" in the maintenance page and enter a new online payment password. (Mobile phone Baidu "Baidu Cash Loan" can meet your consumption needs at any time! )