The credit card verification code is a verification code set up by commercial banks to ensure the security of credit card passwords. It is used when credit cards are used for indirect credit card consumption transactions, such as online payments. It can be seen from this that the credit card verification code is related to the security of the card. Once it is leaked and stolen by someone with evil intentions, credit card fraud is very likely to occur.

The card verification code is the last three digits on the signature strip on the back of the credit card, displayed in italics. Usually there will be the last four digits of the credit card number on the signature slip, and the three digits after the last number are the additional codes, also called credit card verification codes.

Extended information:

Notes on using credit cards:

1. Repay on time: After using a credit card, be sure to remember to repay on time. Once it is overdue, it will not only result in a bad credit record, but the bank will also charge overdue penalty interest.

2. Don’t swipe your credit card too frequently: Some people use credit cards frequently and the intervals between credit card swipes are short. Such behavior can easily be risk controlled by banks.

3. Diversification of consumption: When cardholders use credit cards for consumption, they should be diversified and not limited to one place. They can swipe their cards in hotels, restaurants, shopping malls and other places. If you keep spending in one place, the bank will think that the cardholder does not have the spending power and will lower the credit limit of the credit card.

Baidu Encyclopedia-Credit Card Security Code