It’s not the bank card password, it’s the last three digits. The CVC (CardVerificationCode) credit card verification code is an additional code printed on the back of the credit card, also known as CVV.

The last three digits are shown in italics at the top of the signature. The first four digits are the card number, and the last three digits are the verification code. This is the last three digits on the back of the card. This code is generated by the encoding rules and encryption algorithm of the issuing bank. During the payment process, if the merchant provides the last three digits to the bank, the bank will by default obtain cardholder authorization for the merchant, allowing the transaction to proceed.

Extended information:

Most overseas shopping websites only require the credit card number + credit card validity period + the three-digit CVV code behind it to complete the payment. No credit card password is required at all. Therefore, the importance of CVV2 code is almost equal to that of password.

So the credit card number, expiration date, CVV/CVC code, as well as your personal ID card and mobile phone number are all important credit card information. Therefore, you should try to avoid casual disclosure during use and keep it confidential. Cardholders can cut a small piece of tape and stick the CVV2 code on it to prevent leakage.

At the same time, you should also fully protect your credit card: try to keep the card close to your body, do not let the credit card out of your sight when making purchases, do not hand the card to the clerk for checkout, and prevent the card information from being viewed by outsiders.

Baidu Encyclopedia-Last three digits