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  2. Card security code - Wikipedia

    en.wikipedia.org/wiki/Card_security_code

    The card security code is not encoded on the magnetic stripe but is printed flat. American Express cards have a four-digit code printed on the front side of the card above the number. Diners Club, Discover, JCB, Mastercard, and Visa credit and debit cards have a three-digit card security code. The code is the final group of numbers printed on ...

  3. What Is a Credit Card Security Code and Why Is It ... - AOL

    www.aol.com/credit-card-security-code-why...

    The three- or four-digit code on credit and debit cards can be either a card security code or a card verification value. A three-digit CVV is located on the back of Mastercard®, VISA® and ...

  4. Payment card number - Wikipedia

    en.wikipedia.org/wiki/Payment_card_number

    While the vast majority of Visa's account ranges describe 16 digit card numbers there are still a few account ranges (forty as of 11 December 2013) dedicated to 13 digit PANs and several (439 as of 11 December2013) account ranges where the issuer can mix 13 and 16 digit card numbers. Visa's VPay brand can specify PAN lengths from 13 to 19 ...

  5. Credit card information: The basics you need to know - AOL

    www.aol.com/finance/credit-card-information...

    CVV or security code. A Card Verification Value (CVV), also called a security code, is the three-digit number located on the back of your credit card near the signature box, typically under the ...

  6. Smart card - Wikipedia

    en.wikipedia.org/wiki/Smart_card

    The card security code (CSC) is a 3 or 4 digits number printed on a credit or debit card, used as a security feature for card-not-present (CNP) payment card transactions to reduce the incidence of fraud. The Card Security Code (CSC) is to be given to the merchant by the cardholder to complete a card-not-present transaction.

  7. What Is a Credit Card Security Code and Why Is It ... - AOL

    www.aol.com/finance/credit-card-security-code...

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  8. What's My Credit Card CVV? - AOL

    www.aol.com/news/whats-credit-card-cvv-140000458...

    Aside from the card number itself, the CVV is one of the most important numbers on your credit or debit card. "The CVV was first devised as an anti-fraud mechanism," says Monica Eaton-Cardone, co ...

  9. ISO 8583 - Wikipedia

    en.wikipedia.org/wiki/ISO_8583

    ISO 8583 is an international standard for financial transaction card originated interchange messaging. It is the International Organization for Standardization standard for systems that exchange electronic transactions initiated by cardholders using payment cards.