On the basis of optimizing and upgrading the POS acquiring control ability of enterprises, the rights and interests of consumers and cardholders such as information security and capital security will be further protected from infringement. At the same time, the payment-loving electronic signature application ensures that the electronic signature meets the requirements of the national electronic signature law through close cooperation with integrators, thus having absolute legal effect. It is best for pos machines to choose brands paid by banks, UnionPay and third parties, which is safe and stable. I use the third-party payment of Love pos machine. Companies and salesmen are frauds. Don't use the POS machines paid by Star. Be careful. Ask clearly if necessary. The brand has obtained a payment license, and the machine is a cleaning machine, so it is safe.