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Credit card security codes are an important security measure that help prevent fraud and identity theft. They add an additional layer of safety when making purchases and help ensure the buyer is, in fact, the cardholder.
These security codes—often called a CVV, short for “card verification value”—are three- or four-digit codes located directly on your credit card. You’ll likely be asked for your CVV when making card-not-present transactions, such as those made online and over the phone.
Below, we detail where to find credit card security codes, how they work and why they’re important for consumer protection.
Table of contents
The location of your CVV depends on the credit card issuer. Your code will either be on the front of your card above your card number or on the back of your card to the right of your card number.
| Issuer | Security code length | Where to find the code |
|---|---|---|
| American Express | 4 digits | Front of the card |
| Visa | 3 digits | Back of the card |
| Mastercard | 3 digits | Back of the card |
| Discover | 3 digits | Back of the card |
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