What is the Credit Card Verification Number (CVN)?

For your safety and security, we require that you enter your credit card's verification number.

 
Visa, MasterCard, Diners Club and Discover Card Verification Numbers are a 3-digit number that is printed on the back of your card. It generally appears to the right of your card number.
 
American Express Card Verification Numbers are a 4-digit number printed on the front of the card. It generally appears to the right of your card number.