If China Merchants Bank uses a credit card and swipes the card, you don't need to open the function of trading by password, so you don't need to enter a password for trading.

in addition, there is a small amount of confidentiality-free visa-free service. If a financial IC card or mobile device with the function of "flash payment" is used, when a certain amount (domestic _3 yuan RMB, overseas is subject to the local limit) is transacted by a designated merchant, the payment can be completed by simply placing the card or mobile device near the "flash payment" sensing area of POS machines and other acceptance terminals.