What does ccv mean?

Ccv is the verification code behind the bank card. Don't show it to anyone casually, otherwise you may not be able to brush away the money.

Bank card refers to a credit payment tool issued by commercial banks (including postal financial institutions) with all or part of the functions of consumer credit, transfer settlement, cash deposit and withdrawal, etc.

Bank card reduces the circulation of cash and checks, which makes the banking business break through the limitation of time and space and undergo fundamental changes. The application of bank card automatic settlement system makes the dream of "no cheque, no cash society" come true.

Change card core

The core of the bank card is changed because the track information of the traditional magnetic stripe card is easy to be copied, which has security risks. In contrast, the chip card has key encryption technology, and the encrypted information is generated randomly. Wang Yu, a senior risk expert of China UnionPay, said that at present, there is no actual case of fake card fraud caused by copying chip bank cards in the world.

Before 20 14, 10 and 3 1, all card-issuing banks and acquiring institutions will close the function of using the magnetic stripe card in the chip magnetic stripe composite card in domestic POS channels and only use the chip for transactions; From 20 15, banks stopped issuing magnetic stripe cards and only issued chip cards.