Credit card holders should take good care of their credit cards and passwords. The signature of a credit card can only play an auxiliary role, not necessarily the fundamental role of anti-theft, so it should not be used as a defense line for anti-theft brushes.

So if the credit card and password are stolen and the signatures don't match, the money may also be stolen or taken away.

When spending, cardholders can choose to swipe their cards with or without a password. If the consumer can accurately enter the credit card password during the credit card transaction, it is obviously too harsh to ask the merchant to repeatedly review the signature or check the ID card, and it is not realistic to ask the ordinary cashier to check the signature.