1. Cardholder authentication failure means that the authentication of the cardholder fails when swiping the card. Generally, this situation will result in the inability to swipe the card and complete the payment.

2. Authentication failure may be caused by two reasons. On the one hand, it is the card POS machine, which needs to be replaced. On the other hand, the status of the bank card itself is abnormal, such as the card being degaussed, the card not being activated, and the password being entered incorrectly too many times.