What is a CVN number and why do I need to enter it?
CVN stands for Card Verification Number (sometimes called CID – card identification number or CVC – card verification code), and it is one of the ways that merchants and card issuers are working together to increase credit card security. The number is a 3 or 4 digit code that is added to your card on either the back, above the signature strip, or the front, above the embossed number. Entering the CVN number is a required part of the checkout process.