There is only one word on the back of the credit card. Is this ok? Can I go to the supermarket to spend money? There is a colleague who only signs one word on the back of the credit card. Note: Do you have a credit card? You need to call the customer service hotline on the back of your credit card to set up your consumption pattern. At present, there are two consumption patterns of credit cards: 1. Signature+password. 2. You don't need to enter the password just by signing. Personal suggestions are only subject to signature. Because if your credit card is stolen and you set a password, the bank won't compensate you, because the password is private and only you know it. But if you only sign your name, if you brush off the theft, the bank will pay part of it. Because the signature cannot be imitated, it can be verified.