The card back logo is the CVV2 code on the back of the credit card. The CVV2 code generally appears next to the cardholder's signature, and the most important part is the last 3 or 4 digits of the signature area. The CVV2 code is called a credit card security code. If the CVV2 code is leaked, the cardholder's credit card may be stolen.

The CVV2 code is mainly used to verify that the payer owns the credit card at the time of transaction. Each bank's credit card has a different printing location for the CVV2 code. Cardholders need to carefully look for the location of the CVV2 code. After finding the CVV2 code, use colored tape to cover it, or use a blade to remove the CVV2 code.

Only the bank and the cardholder know the CVV2 code. The cardholder needs to remember the CVV2 code firmly after finding it, and then clear the CVV2 code. Many overseas shopping websites do not require the cardholder’s password to make purchases. Overseas websites only need to obtain the cardholder’s account number and CVV2 code to conduct transactions.

Cardholders need to be more vigilant when using credit cards and do not ignore the CVV2 code. The three most important parts of a credit card are the credit card validity period, CVV2 code, and credit card number. The CVV2 code is easily ignored by cardholders.

Credit cards are private items. Cardholders are not allowed to lend their credit cards to others or disclose credit card information to others. The CVV2 code is equivalent to a credit card password, and cardholders need to protect the CVV2 code.

A credit card is a credit certificate issued by a commercial bank or credit card company to consumers with qualified credit. The form of a credit card is a card with the name of the card-issuing bank, validity period, number, cardholder name, etc. printed on the front. Consumers holding credit cards can go to a special commercial service department to shop or consume, and then the bank will work with the merchant and the cardholder to The cardholder can make an overdraft within the prescribed limit.

The main features of credit cards:

1. Credit cards are one of the fastest growing financial services today. It is an electronic payment method that can replace traditional cash flow within a certain range. Currency;

2. Credit cards have both payment and credit functions. Cardholders can use it to purchase goods or enjoy services, and can also obtain certain loans from card issuers by using credit cards;

3. Credit cards are high-tech products that integrate financial services and computer technology.

4. Credit cards can reduce the use of cash;

5. Credit cards can provide settlement services, facilitate shopping and consumption, and enhance a sense of security;

6. Credit cards It can simplify payment procedures and save social labor;

7. Credit cards can promote product sales and stimulate social demand.