2. 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".
3. Generally, Guangfa Bank does not need a password to swipe its credit card; All credit cards are swiped to see if the signature is consistent with the signature of the bank card signature document; If they don't agree, they will be asked to type a password and provide other valid certificates.
4. If it is a non-flash payment POS machine, you can only use the traditional card to swipe your card, so you must use the password transaction. Transaction amount: In order to prevent transaction risks, only a single small transaction below 1 000 yuan can be paid without password. If it exceeds 1000 yuan, even if you can pay by flash, you must enter a password to swipe your card.
5. it's okay. If you swipe your credit card on the pos machine, you only need to enter the password (and then sign the transaction form after the transaction). If you need the verification code of your mobile phone, there are transactions online.
6. When making a certain amount of consumer transactions (generally RMB within 300 yuan), you only need to put the credit card near the pos machine or the sensing area of the acquiring equipment, and you don't need a password and signature. In order to complete confidential payment and realize this credit card method, two conditions must be met. One is that the bank card supports the flash payment function, and the other is that the credit card machine needs to support the flash payment function.