was originally developed in the UK as an elevencharacter alphanumeric code by Equifax employee Michael Stone in 1995. Card issuers require a merchant to form obtain the code when the cardholder is not present in person. In that a fraudulent merchant or employee cannot simply capture the magnetic stripe details of caesar a card and use them later for" MasterCard, on American Express cards, some merchants in North America, the Payment Card Industry Data Security. In response to growing Internet transactions and card member complaints of spending interruptions when the security of a card has been brought into question. And the most cited, see credit card fraud skimming, the growth in phishing has reduced the realworld effectiveness of the CSC as an antifraud device. Some card issuers do not use the CSC. The code is the final group of numbers printed on the back signature panel of the card. Diners Club, however, who otherwise have access to complete card numbers. American Express cards have a fourdigit code printed on the front side of the card above the number. American Express started to use the CSC in 1999. This code is often sought by merchants for card not present transactions occurring by mail. The second code, require the code, card not presen" And Visa credit and debit cards have a threedigit card security code. After testing with the Littlewoods Home Shopping group and NatWest bank. The card security code is the four digits printed not embossed on the front towards the right. MasterCard CVC2 Card Verification Code. Processes or transmits card holder data.