Card Identification Numbers
The card identification number (CIN) is a 3 or 4 digit, numeric value that provides a cryptographic check of the information embossed on the card. This security feature is designed to protect you against consumer fraud. Your CIN will not be stored or maintained on any of our systems and you will need to provide the number every time you purchase on our site.

American Express:
The CIN is the four-digit, non-embossed, number printed on the front of your credit card. It is printed on top of the account number, either on the right or the left side of the card. The CIN will not be stored or maintained on any of our systems and you will need to input the number every time you purchase on our site.

MasterCard: The CIN is the last set of three-digit, non-embossed, numbers printed on the back of the credit card on the signature block. The CIN will not be stored or maintained on any of our systems and you will need to input the number every time you purchase on our site.
Visa/Discover: The CIN is the three-digit, non-embossed, number at the end of your Visa or Discover card account number. It is printed on the back of the credit card on the right hand side, in the signature block.