In fact, most domestic credit cards support passwords.

Some banks do not need a password for credit card spending, or they may enter the wrong password.

However, in order to avoid the risks of online payment and ATM withdrawal, banks must require customers to enter their own transaction passwords. Of course, the transaction password of online banking can be different from that of ATM withdrawal, and can be modified according to the situation of each bank.

For example, ICBC's online banking, most banks' online banking, and online payment passwords can be added with English letters. And ATMs can only use six digits as passwords.

Network for secure payment, each bank has its own online banking encryption dog, that is, U shield. After insertion, it can safely perform transaction transfer operations.

In foreign countries, if you use a dual-currency credit card, the password of the credit card is not acceptable. What the merchant recognizes is whether my signature on the back of your card is consistent with the signature on the POS list, because foreign countries take the channels of financial institutions such as VISA, Master and Express.

Bank card center staff provide information ~