The City of Madison is the largest city in Dane County and the State Capital of Wisconsin. Our highly educated population, coupled with a strong mid-western work ethic, makes for an engaged workforce.
To help reduce fraud in the card-not-present environment, credit card companies have introduced a card code program. Visa calls this code Card Verification Value (CVV); MasterCard calls it Card Validation Code (CVC); Discover calls it Card ID (CID). The card code is a three- or four- digit security code that is printed on the back of cards. The number typically appears at the end of the signature panel.
Card Verification Codes - CVV2, CVC2, CVD and CID. Card Verification Data (CVD) codes are the three or four-digit codes on the back of the payment card that are used to further authenticate the consumer during a card-not-present transaction.