Overview#Card Security Code are Codes used in the Cardholder Verification Method process and either written on the payment Card magnetic Stripe Data or printed on the card that are used by the financial payment brands for credit, debit and prepaid transactions to protect against card fraud.
Codes used by MasterCard, Visa and other payment networks to protect against fraudulent transactions on credit, debit and prepaid cards. Examples:
- CSC – Card Security Code (American Express)
- CID - Card Identification Data (Discover)
- CVC or CVC2 - Card Verification Code (MasterCard)
- CVV or CVV2 – Card Verification Value (Visa)