It is mainly used for security authentication in indirect contact transactions such as card opening activation, online transactions and telephone transactions.

Credit card security codes (CVV2, CVN2, CVC2) are mainly used for security authentication in indirect contact transactions such as card activation, online transactions and telephone transactions, and are as important as passwords. Usually need to pay special attention to protection, don't reveal these core information!

The signature on the back of the credit card is another layer of protection for consumers' safety. If you spend money through VISA or MasterCard channels abroad, you only need to sign to complete the transaction. Therefore, for the sake of safety and convenience, please sign the new card immediately when you receive it.

Do not disclose credit card information (transaction password, card number, expiration date, security code, etc.). ), personal data (mobile phone number, ID number, etc. ) and SMS verification code, and don't lend your credit card to others.

★ When swiping the card, don't let the credit card leave the line of sight; When entering the password, block the operation gestures as much as possible; After the transaction is completed, you must carefully check the purchase order.

★ Once the card is lost, report the loss immediately; If the information is leaked, you should immediately call the customer service hotline to freeze the card.