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.
A card security code (CSC; also called card verification data [CVD], card verification number, card verification value [CVV], card verification value code, card verification code [CVC], verification code [V-code or V code], card code verification, [1] or signature panel code (SPC)