How to ensure the security of transaction information when POS card is swiped

With the continuous development of technology, the popularity of POS machines is getting higher and higher, but the flow of funds directly through the network is risky. So, how can we make online payment safe and fast? The security of credit card protection Thanks to the safety design of the POS machine system, let's look at the five safety designs of the POS system!

Authentication

This is the first problem to be judged when swiping the card. Only the confirmed POS machine is assigned an IP address; after the transaction data is sent to the bank POS host, the relevant information and database of the POS machine's merchant number and POS number are passed. The comparison ensures further legitimacy of mobile POS access.

Firewall

A firewall is the most basic configuration of network security control and an important barrier to a secure network. Firewalls can greatly enhance the security of internal networks, protect trusted networks from threats from untrusted networks, allow both parties to communicate, and reduce risk by filtering unsecured services. The use of router mutual authentication, address translation and other technical means can effectively prevent fake routers from accessing and illegally intercepting data.

Data Security

The wireless POS transaction data packet and the wireless POS transaction data packet format and encryption method use the ISO8583 mode to transmit transaction data, and also perform data encryption protection and MAC authentication and integrity control at the application layer, for sensitive data such as user accounts, Passwords and the like are encrypted by the international standard encryption algorithm 3DES to ensure the security of the transaction data of the wireless POS system.

Terminal security

Each wireless wireless POS terminal is equipped with a GPRS SIM card, and the uniqueness of the SIM card is used to delineate the range in which the user can access a certain system, thereby effectively avoiding illegal intrusion. The wireless POS master key is encrypted and stored with a dedicated secure CPU to ensure the security of the master key.

cyber security

The current GPRS transmission coding methods are CS-1 and CS-2, and they all have encryption protection for the transmission data, so the GPRS channel itself is safe. GPRS wireless POS system can use VPN or SDH technology to establish POS system on mobile data public network. Enterprise internal virtual private network enables distributed wireless POS machines to securely access bank POS host and bank internal network resources to ensure POS system wireless access network. Reliability and security.