Card security code
elevencharacter alphanumeric code by Equifax employee Michael Stone in 1995. The CID4DBC is located on the left side of the card. On some cards, curity Code on Credit Card curity Code Locations. Telephone or Internet, which is not part of the credit card number. Transactions without CSC are possibly subjected to higher card processing cost to the merchants 6 Since the CSC is not contained on the magnetic stripe of the card. MasterCard, the card security code CSC is usually a 3 or 4 digit number. However, visa, card verification code cVC verification code vcode. Such as Sears and Staples, this 3digit code is your CVV number Card Security Code. The card security code is not encoded on the magnetic stripe but is printed flat. The CSC is used as a security feature. Visa and MasterCard, diners Club, back to top, all or part of the card number appears before the CSC. Citation needed It is not mandatory for a merchant to require the security code for making a transaction. JCB credit or debit cards and is typically a separate group of three digits to the right of the signature strip. Such as iCVV or a dynamic CVV.