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A card security code (CSC), (also called card verification data, card verification number, card verification value, card verification value code, card verification code, verification code (V-code or V code), card code verification,〔(【引用サイトリンク】title=Authorize.Net - Developer Frequently Asked Questions: )〕 or signature panel code (SPC)〔(【引用サイトリンク】title=CIBC MasterCard - MasterCard SecureCode )〕 are different terms for a security feature for "card not present" payment card transactions instituted to reduce the incidence of credit card fraud. The CSC is in addition to the bank card number which is embossed or printed on the card. The CSC is used as a security feature, in situations where a PIN cannot be used. The PIN is not printed or embedded on the card but is manually entered by the cardholder during a point-of-sale (card present) transactions. Contactless card and chip cards may electronically generate their own code, such as iCVV or Dynamic CVV. CSC was originally developed in the UK as an 11 character alphanumeric code by Equifax employee Michael Stone in 1995. After testing with the Littlewoods Home Shopping group and NatWest Bank, the concept was adopted by APACS (the UK Association of Payment Clearing Services) and streamlined to the 3 digit code known today. MasterCard started issuing in 1997 and Visa in the United States issued them by 2001. American Express started to use the CSC in 1999 in response to growing internet transactions and card member complaints of spending interruptions when the security of a card has been brought into question. ==Description== The codes have different names: * "CID" or "Card Identification Number" - Discover * "CID" or "Unique Card Code" - American Express * "CSC" or "Card Security Code" - Debit Card * "CVC2" or "Card Validation Code" - MasterCard * "CVE" or "Elo Verification Code" - Elo - Brazil * "CVN2" or "Card Validation Number 2" - China UnionPay * "CVV2" or "Card Verification Value 2" -Visa 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Card security code」の詳細全文を読む スポンサード リンク
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