Does the subject want to ask "credit card needs authentication, how to solve it"? Credit cards need authentication, and the solution is as follows:

1. Contact the bank: You can call the customer service department of the credit card issuer to inquire about the specific requirements and steps of authentication. Their credit card issuing bank customer service helps complete the authentication process.

2. online certification: Log in to the credit card mobile banking application, find the authentication option of online certification service, and follow the prompts for authentication.

3. Go to the bank: go to the counter of the credit card issuing bank in person, ask the staff about the specific requirements for authentication, and complete the authentication process there.