How to read bank card information with mobile phone

Open the NFC function of the mobile phone, download Alipay wallet, the version needs to be above 8.0, and then put the mobile phone close to your bank card to quickly read the bank card balance and related information. The distance of NFC mobile phone reading information directly determines the difficulty of obtaining bank card number. According to the test, only when the distance is greater than 5cm can the bank card information be read, so the distance between the mobile phone and the bank card should be kept within 5cm when reading the information.

Near field communication is a new technology. Devices using NFC technology can exchange data when they are close to each other. It is developed from the integration of contactless radio frequency identification (RFID) and internet technology. By integrating the functions of sensor card reader, sensor card and point-to-point communication on one chip, mobile payment, electronic ticketing, access control, mobile identity recognition, anti-counterfeiting and other applications can be realized by using mobile terminals.

NFC (NearFieldCommunication), also known as near field communication, is developed by the integration of contactless radio frequency identification (RFID) and internet technology. It integrates sensor card reader, sensor card and point-to-point function on one chip, and can identify and exchange data with compatible devices in a short distance.

It was jointly developed by Philips Semiconductor (now NXP Semiconductor), Nokia and Sony, and its foundation is RFID and internet technology.

Baidu Encyclopedia-Near Field Communication