We ask for a credit card verification (CCV) number as a security precaution and, for your added protection, we do not store it. You'll find CCV numbers in the following places:

Visa, Mastercard & Discover
Look for a three-digit, non-embossed number printed on the signature panel on the back of your card. It immediately follows your account number.

American Express
Look for a four-digit, non-embossed number printed above your account number on the front of your card.