credit card CVV code
it is understood that the disclosure of credit card CVV code is risky, so if the credit card CVV code is disclosed, users can apply to the bank to temporarily freeze the credit card to prevent it from being stolen, and then apply to the bank to report the loss of the credit card and reissue a new card. However, the new card is different from the CVV security code. After the new card comes down, you can cover the CVV code on the back with a sticker, and avoid revealing the credit card information.
the security code of credit card is the security code of credit card in online or telephone transactions. It is usually a 3-or 4-digit number printed on a credit card, and different types of cards will have different printing positions. It is usually used to confirm that the payer has a credit card at the time of transaction, so as to prevent credit card fraud, so if the credit card CVV code is leaked, it must be reported as soon as possible.