Ryan P Page, Staff Writer
A CVV can be 3 or 4 digits, depending on the card’s network. American Express is the only major credit card network to have the CVV as 4 digits, while credit cards from Visa, Mastercard, and Discover have a 3-digit CVV. Regardless of whether it is 3 or 4 digits, a card’s CVV, or card verification value, serves the same purpose.
The CVV is used to authenticate your card during a transaction. This is important especially for shopping online, because the issuer will authenticate your CVV code at checkout, and having the correct code means the card is likely yours and in your possession. This is not nearly as important if you are shopping with the physical card in person, because the card is in your possession when you make the purchase and is typically assumed to belong to you.
To learn more, check out WalletHub’s credit card security code guide.
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