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  2. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    Luhn algorithm. The Luhn algorithm or Luhn formula, also known as the " modulus 10" or "mod 10" algorithm, named after its creator, IBM scientist Hans Peter Luhn, is a simple check digit formula used to validate a variety of identification numbers. It is described in US patent 2950048A, granted on 23 August 1960. [ 1]

  3. Address verification service - Wikipedia

    en.wikipedia.org/wiki/Address_verification_service

    Address verification service. An address verification service ( AVS) is a service provided by major credit card processors to enable merchants to authenticate ownership of a credit or debit card used by a customer. [ 1] AVS is done as part of the merchant's request for authorization in a non-face-to-face credit card transaction.

  4. Card security code - Wikipedia

    en.wikipedia.org/wiki/Card_security_code

    A card security code ( CSC; also known as CVC, CVV, or several other names) is a series of numbers that, in addition to the bank card number, is printed (but not embossed) on a credit or debit card. The CSC is used as a security feature for card not present transactions, where a personal identification number (PIN) cannot be manually entered by ...

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

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

    Printed on a credit card, you'll find the card number, the cardholder’s name, when the card expires and the card's security code — all the details you need to make purchases online or in ...

  6. What Is a Credit Card Security Code and Why Is It Important?

    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 ...

  7. List of major credit card issuers and networks - AOL

    www.aol.com/finance/list-major-credit-card...

    U.S. Bank Altitude® Reserve Visa Infinite® Card *. U.S. Bank Triple Cash Rewards Visa® Business Credit Card *. Advantages of this card issuer: U.S. Bank credit cards may not be as popular as ...

  8. List of Internet top-level domains - Wikipedia

    en.wikipedia.org/wiki/List_of_Internet_top-level...

    .credit: Credit card companies, lenders, credit unions, collection agencies, credit counselors & financial planners — Identity Digital [ID 36] Yes: Yes .creditcard: Credit card companies, store/retailer credit card sites, credit counselors & financial planners, credit card processing services — Identity Digital [ID 37] Yes: Yes .cruise

  9. Payment Card Industry Data Security Standard - Wikipedia

    en.wikipedia.org/wiki/Payment_Card_Industry_Data...

    The Payment Card Industry Data Security Standard ( PCI DSS) is an information security standard used to handle credit cards from major card brands. The standard is administered by the Payment Card Industry Security Standards Council, and its use is mandated by the card brands. It was created to better control cardholder data and reduce credit ...