1. Did you accidentally enter the wrong password at the ATM? Note that some ATMs are numbered 1-9 from top to bottom, while others are numbered 1-9 from bottom to top. I met such a customer who kept saying on the phone that his password was entered correctly and had to talk to the bank. Finally, it was OK to automatically unlock it the next day and re-enter it correctly. I never complained again.
2. If you enter it once today and the number of error prompts exceeds three times, it means that it has exceeded three times (most banks generally set the number of errors to three times a day). Think about whether anyone else has used your card today.
3. Mobile banking generally uses a query password. Since you are logged in but your account number is not displayed, let's see if it is because the network is not displayed.
There is something wrong with the banking system, or the bank encryption machine is broken. See if it's caused by the upgrade of the banking system. You can call for advice.
Extended data
Common sense of ATM safe operation:
1. The scammer installed a card swallowing device in the ATM card slot and peeped at the password behind or far away from the cardholder with a telescope. After the cardholder left, the swindler took out the bank card and used the password to withdraw money.
2. When swiping the card to enter the password in the mall, you should use your body to block the operation gestures as much as possible to prevent criminals from peeping.
3. When you get the purchase order and card returned by the cashier, you should carefully check whether the amount on the purchase order is correct and whether the card is really your own card.
4. In case of abnormal credit card consumption, the transaction documents should be properly kept. In case of repeated card deduction, you can contact the issuing bank in time with the transaction documents and statements.
5. After receiving the bank card statement, check the usage of the card in time. If in doubt, you should inquire through the customer service center of the issuing bank in time.
Reference source
China citic bank-security card