In fact, the telephone payment adopts the non-magnetic confidential MOTO trading mode, which is relatively risky compared with face-to-face POS trading, but the risk is basically borne by the merchants. When choosing cooperative merchants, banks will choose some merchants sold in real-name registration system, such as air tickets, and sign full recourse agreements with merchants. In this way, businesses have the responsibility to take precautions against risks in order to reduce losses. For example, if someone really takes your card and buys a ticket that is not your name, the cautious merchant will refuse or check with you.