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  2. Payment card number - Wikipedia

    en.wikipedia.org/wiki/Payment_card_number

    Payment card numbers are composed of 8 to 19 digits, [1] The leading six or eight digits are the issuer identification number (IIN) sometimes referred to as the bank identification number (BIN). [2]: 33 [3] The remaining numbers, except the last digit, are the individual account identification number. The last digit is the Luhn check digit.

  3. Luhn algorithm - Wikipedia

    en.wikipedia.org/wiki/Luhn_algorithm

    Therefore, systems that pad to a specific number of digits (by converting 1234 to 0001234 for instance) can perform Luhn validation before or after the padding and achieve the same result. The algorithm appeared in a United States Patent [ 1 ] for a simple, hand-held, mechanical device for computing the checksum.

  4. What Do Credit Card Numbers Mean? - AOL

    www.aol.com/finance/credit-card-numbers-mean...

    A credit card number is the set of digits printed on either the front or back of a physical credit card. Credit card numbers are often 16 digits, but they can be as long as 19 digits or as short ...

  5. Credit card - Wikipedia

    en.wikipedia.org/wiki/Credit_card

    This is an accepted version of this page This is the latest accepted revision, reviewed on 24 December 2024. Card for financial transactions on credit This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages) This article needs additional citations for verification. Please help improve this article by adding ...

  6. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. ISO/IEC 7812 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_7812

    It specifies "a numbering system for the identification of the card issuers, the format of the issuer identification number (IIN) and the primary account number (PAN)", [1] and procedures for registering IINs. [2] It was first published in 1989. ISO/IEC 7812 has two parts: Part 1: Numbering system; Part 2: Application and registration procedures

  8. Carding (fraud) - Wikipedia

    en.wikipedia.org/wiki/Carding_(fraud)

    Carding is a term of the trafficking and unauthorized use of credit cards. [1] The stolen credit cards or credit card numbers are then used to buy prepaid gift cards to cover up the tracks. [2]

  9. Tokenization (data security) - Wikipedia

    en.wikipedia.org/wiki/Tokenization_(data_security)

    Random Number Generator (RNG) techniques are often the best choice for generating token values. Token Mapping – this is the process of assigning the created token value to its original value. To enable permitted look-ups of the original value using the token as the index, a secure cross-reference database must be constructed.