In order to ensure the security of your credit card, sign your name on the back of the credit card and set up double insurance for the credit card to prevent the credit card from being stolen.

When the cardholder withdraws money from the ATM of the bank, if there is something wrong with the machine and the card is swallowed, the bank staff can also check the signature on the back of the bank card with the signature on the register under the condition that the identity of the victim cannot be verified, so as to handle the card return business.

At present, there are two forms of credit card consumption, one is consumption by password, and the other is consumption by signature. According to international practice, most international card issuers use credit cards with signatures for consumption. If you use a credit card abroad, if you don't have a password, you can use your signature. If the cardholder does not endorse, it will affect his normal consumption abroad.