When I swipe my card at the mall, the cashier will ask me to sign the signature strip on the back of the bank card. What's going on here? It is said that I should sign my name.

The merchant requires the acquiring bank to pay the paying bank against this purchase order. If the cardholder does not agree to pay, saying that there is no such consumption, the paying bank can refuse to pay the money. If the acquiring bank, that is, the merchant's bank requires payment, it must claim compensation from the cardholder against this purchase order. If it is verified that the purchase order is not signed by the cardholder himself or by the cardholder himself, the merchant will not receive the money. Therefore, the merchant must check the purchase order to give the goods to the cardholder, otherwise the payment will not be received.