What is CVV (Card Verification Value)?
Credit Card Glossary · Updated April 2026
A 3 or 4-digit security code on your credit card used for card-not-present transactions (online, phone). Visa, Mastercard, and Discover have a 3-digit CVV on the back; Amex has a 4-digit code (CID) on the front. Never share your CVV publicly.
Frequently asked questions
What is CVV?⌄
A 3 or 4-digit security code on your credit card used for card-not-present transactions (online, phone).
What does CVV mean on a credit card?⌄
A 3 or 4-digit security code on your credit card used for card-not-present transactions (online, phone). Visa, Mastercard, and Discover have a 3-digit CVV on the back; Amex has a 4-digit code (CID) on the front. Never share your CVV publicly.
Where does CVV apply?⌄
CVV is a security concept. It typically appears in the context of fraud prevention and account safety.
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