What Is the Credit Card Security Code?
The credit card Security Code, also called the Bank code or the Card Identification Number (CIN), is a special security code feature on credit cards.
By requiring the Security Code to be entered with the customer's credit card, you are verifying that the order is being placed by the card holder. The Security Code offers protection to the card holder as well. The Card Identification Number (CIN) is not raised, so they are not scanned into standard credit card readers. In theory, these numbers are only visible to the card holder.
Where do I find this Security Code?
Visa and Mastercard Users
Flip your card over and look at the signture box. You should see either the entire 16-digit credit card number or just the last four digits followed by a special 3-digit code. This 3-digit code is your Credit Card Security Code.