The Card Security Code is the three or four-digit security code on your MasterCard, Visa, American Express or Discover, card. We ask for your Card Security Code to verify that the order is being placed by you and to detect any fraudulent use of your card. Locate the Card Security Code on your card as shown below:
This number is printed on your MasterCard, Visa and Discover cards in the signature area of the back of the card. (it is the last 3 digits in the signature area of the card). | American Express cards show the Card Security Code printed above and to the right of the imprinted card number on the front of the card. This is the non-embossed number. |