Credit Card Security Code
The Card Security Code (CSC) is a 3 or 4 digit number printed on the back of
a credit card (typically in the signature field). The number appears only on the
card itself (not on receipts or statements) so it can provide some indication
that the physical card is in the possession of the buyer.
This additional security measure helps protect both the buyer and the seller
in combatting credit card fraud.
The CSC is submitted with the order form and the cardholder’s bank returns a
Yes/No response on whether the value matches the number on file at the bank. We
then accept or reject orders based on this information.
On some cards, all or part of the card number appears before the CSC, for
example, 1234 567. In the drawing, 1234123412341234 is the credit card number,
and 567 is the CSC.