2. "Password+signature" payment: If the credit card has a password, you need to enter the password when swiping the card, and the transaction with wrong password cannot be successful. "Signature" payment: If the credit card has no password, it is not necessary to enter the password when swiping the card, but the cashier needs to check the cardholder's signature handwriting.
3. The reasons why credit cards don't need passwords are as follows: Anyone who knows about credit cards knows that American credit cards can usually complete credit card payment by signing. After the introduction of credit cards in China, credit cards will also be brought to China in the form of signature consumption. Many people regard avoiding password trading and signing with a stroke of a pen as "chic".
4. When using flash payment to swipe the bank card, the single amount does not exceed 1000 yuan, and there is no need to enter a password and signature. Only on the contactless payment terminal that supports UnionPay "flash payment" can the payment be completed quickly.
5. You don't need to enter a password to swipe your card. This black technology from UnionPay is called little secret visa-free. Small confidential exemption and visa-free is a small fast payment service provided by China UnionPay for cardholders.
6. Why did the credit card suddenly swipe the card without entering the password? There are two situations, one is a signature transaction, and the other is a small double-free transaction.