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1. credit card cvv2 code is generally used when using credit cards abroad, which is also the reason why credit cards are stolen abroad. When you pay by credit card abroad, you don't need a password. You only need to know the cvv2 code, card number and expiration date of the credit card to complete the payment.
2. The security code of the credit card is unique. If the credit card expires, the security code will change after changing the credit card, even if the credit card number has not changed, this security code needs to be changed. It should be noted that if this security code is erased, you will forget how to get the money back in the future.
There is no record of this.
3. In China, credit card cvv2 code is generally not used when conducting transactions with credit cards. If the credit card is not used in China, you can scrape off the cvv2 code of the credit card, which can ensure the safety of using the card, but don't forget the transaction password and inquiry password of the credit card.
4. The credit card cvv2 code is at the signature of the credit card. It is often expressed in the form of XXXX 125, that is, the first four digits, the last space, and then the last three digits. These three numbers are the cvv2 code of our credit card. The cvv2 code of credit card is its security code, which is often used for security authentication in offline transactions such as online transactions, telephone transactions and card opening activation. So in a way,
The CVV2 code is as important as the credit card password. Criminals can steal consumers' credit cards by providing the credit card number, expiration date and the three-digit CVV2 code on the back of the card.