What is the card verification code for VISA cards called?

The card verification code for VISA cards is known as CVV2. This code is a three-digit number printed on the back of the card, typically found within the signature panel. CVV2 serves as an additional security measure designed to help verify that the cardholder is in possession of the physical card during online or card-not-present transactions.

The use of CVV2 is crucial in preventing fraud since it adds a layer of authentication that is not present in the card's magnetic stripe or chip. This distinction is important in the context of payment processing and transaction security, as merchants often require that customers provide this code to complete purchases, indicating that the customer is indeed in possession of the card.

Other terms like CVV1, CVC, and CSC are related to card verification but differ in their usage or the card networks to which they apply. For example, CVV1 refers to a code on the magnetic strip used in transactions at point-of-sale terminals, while CVC is commonly associated with MasterCard’s security code. Understanding these differences helps in comprehending how various card security measures are implemented across different payment networks.