A number printed on the back of MasterCard credit cards. By making this number a requirement when collecting card holder information merchants can reduce the risk of fraud and charge backs.
A unique check value encoded on the magnetic stripe of a card to validate card information during the authorization process. The card verification value is calculated from the data encoded on the magnetic stripe using a secure cryptographic process. This method is used by MasterCard.
security number printed on the back of MasterCard credit cards. Requiring this number during checkout can reduce credit card fraud