Credit card swiping shows that the cardholder's authentication failed, which means that the machine and equipment can't recognize the bank card or can't recognize the bank card when applying for transaction, consumption or other business. This kind of situation often occurs in the process of swiping cards on POS machines. When a clerk uses a user's bank card on a POS machine, he needs to authenticate the true identity of the cardholder. The credit card consumption transaction can only be carried out after the authentication is successful, but the POS machine prompts that the authentication fails, which means that the cardholder's bank card cannot be swiped and there is no way to complete the payment.