What is CVV?

This is a special encryption used by VISA, MasterCard and American Express to prevent fraud. Should you not be using a VISA, MasterCard or American Express card please ignore the CVV field. It is a three-digit identifier printed on the signature strip on the back of the card.

CVV is VISA's Card Verification Value and CVC is MasterCard's Card Verification Code

CVV is printed on the front of American Express card.