CVV code is an additional verification code, which consists of 3 digits. Located on the back of the credit card, at the end of the signature area below the card number. CVV code is displayed in italics, which is separated from other information, such as expiration date and card number. This verification code is designed as a security feature, which is used to verify whether the cardholder has the actual physical credit card, providing an additional level of authentication, and the code needs to be entered when making online or telephone shopping to confirm the legitimacy of the transaction.