The CVV, or Card Verification Value, is a three-digit number on your credit card designed to add an extra layer of security for online transactions or phone purchases
. It helps protect your card from unauthorized purchases and is sometimes referred to as a CVV2, CSC (Card Security Code), or CVC (Card Verification Code)
. The CVV is different from a Personal Identification Number (PIN), which is used for in-person transactions, such as at an ATM or when making a purchase with your debit card
. CVVs are usually found on the back of Visa, Mastercard, and Discover credit cards, next to the signature box
. The purpose of a CVV number is to prevent unauthorized transactions on your credit card
. For example, if an identity thief manages to hack a retailer's system and obtain your credit card number, they likely won't be able to make purchases online or over the phone without your CVV
. To find your card's CVV number, look for a three-digit number on the back of the card or a four-digit number on the front of the card
. For Visa, Mastercard, and Discover cards, the CVV is typically located next to the signature box on the back of the card
