Authentication is required to activate CCB credit card. Only the cardholder of this card can activate the credit card by himself. So how to confirm that the card is opened by yourself is to check some important information or mobile phone verification code filled in when applying for a credit card. This process is needed to activate the credit card at the outlet counter, customer service hotline or online banking, mainly to ensure the security of the cardholder's account and prevent it from being stolen by others.