what does credit card CVV mean? CVV is the abbreviation of Card Verification Value, also known as CVC(Card Validation Code) or CID(Card ID). CVV is a three-or four-digit code, which is usually located on the signature column on the back of a credit card to ensure that the information filled in by the cardholder is consistent with the credit card itself.

The existence of CVV greatly improves the security of credit cards. When you shop online or by telephone, the merchant requires you to enter the credit card number, expiration date and CVV for authentication. Because only when the cardholder knows the credit card number and expiration date, it is difficult to know the CVV code. If your card number, expiration date and CVV code are stolen, your credit card may be stolen by bad elements.

In addition, it should be noted that from April 1st, 218, merchants in China are no longer allowed to collect information such as credit card CVV. This is to better protect the personal information security of consumers. Merchants can only collect necessary information such as credit card number, card validity period and cardholder information, but cannot collect card verification information such as CVV. If it is found that the merchants ask for CVV and other information, consumers can refuse or report to relevant departments.