News from our newspaper (reporter Li Bing) On the opening day of Alipay on July 8, Alipay announced that it would upgrade the bar code payment experience and launch the "Alipay Touch". Users do not need to display payment codes, unlock their mobile phones and touch the merchant's collection equipment, so that they can complete payment as soon as possible. It is reported that both "touch" and "scan" belong to barcode payment. The difference lies in the use of the display screen and camera on the phone for "scanning", and the use of near-field communication technology on the phone for "touching". After completing the interaction using the above sensors, the payment is completed on the network end, and both have equal security.