What is a credit card security code (CVV)?

For your protection, we require an additional set of numbers known as a  credit card security code. This is an extra safeguard for credit card purchases.

Depending on the credit card type, it's the 3- or 4- digit number printed on the back or the front of your credit card

American Express

The verification code is the 4-digit number found on the far right on the front of your credit card.