What are the possible reasons for Bank of China credit card identity authentication failure?

1. Abnormal status of the card. This may be because the cardholder's card has been degaussed, or the credit card has not been activated, the password has been entered incorrectly more than three times, or the credit card has expired more than three times, which may cause credit card abnormalities.

2. There is no network. When a cardholder uses a POS machine to swipe a card, the machine signal is very poor and is not connected to the network, which may cause the card swipe to fail, leading to a failure in credit card authentication.

3. Transactions are not supported. The credit card used by the cardholder can be a single-identity credit card or a visa credit card. UnionPay transactions are not supported, which will also result in a message that the credit card identity authentication fails.

4. The operation is not working. The cardholder uses a credit card with an IC chip, and the bank once again closes the downgrade transaction function. If the cardholder still pays by swiping the card instead of inserting the card, it may prompt that the credit card authentication failed.

5. Bad credit. If the cardholder is overdue, cashes out or performs other illegal operations while using the credit card, the bank will freeze the card, and the cardholder will fail identity verification during use.