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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. Credit card fraud - Wikipedia

    en.wikipedia.org/wiki/Credit_card_fraud

    Credit card fraud is an inclusive term for fraud committed using a payment card, such as a credit card or debit card. [1] The purpose may be to obtain goods or services or to make payment to another account, which is controlled by a criminal. The Payment Card Industry Data Security Standard (PCI DSS) is the data security standard created to ...

  4. 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 ...

  5. Identify legitimate AOL websites, requests, and communications

    help.aol.com/articles/identify-legitimate-aol...

    1-800-358-4860. Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Identify legitimate AOL websites, requests, and communications. Scammers and bad actors are always looking for ways to get personal info with malicious intent.

  6. 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.

  7. Postal address verification - Wikipedia

    en.wikipedia.org/wiki/Postal_address_verification

    Postal address verification (also known as address , address validation, address verification and CASS certification [1]) is the process used to check the validity and deliverability of a physical mailing address. According to the United States Postal Service, an address is valid (or mailable) if it is CASS-certified, meaning that it exists ...

  8. 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 ...

  9. How To Get Free Debit Cards With Money on Them - AOL

    www.aol.com/free-debit-cards-money-them...

    Here are some of the best prepaid debit cards currently available, according to GOBankingRates: Bluebird American Express® Prepaid Debit Account: Best overall. Netspend Visa Prepaid Card: Best ...