Copying a bank card means copying the front of the bank card (the side with the account number) on a piece of paper. A copy of the savings card is generally required. If you need a copy of the credit card, don't copy the back of the credit card, because there is a lot of important information on the back, especially the CVV2 code in the last three digits of the signature column. Bank card refers to a credit payment tool issued by commercial banks (including postal financial institutions) to the society with all or part of the functions of consumer credit, transfer settlement, cash deposit and withdrawal, etc.