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  2. Maestro (debit card) - Wikipedia

    en.wikipedia.org/wiki/Maestro_(debit_card)

    Maestro is a PIN-based debit card network closely related to the Cirrus ATM network, also owned by Mastercard. Like other PIN-debit networks in the U.S., Maestro there relies solely on a standard card and PIN, without a chip; signature-debit transactions in the U.S. are handled through the main Mastercard network or the rival Visa network.

  3. What's a six-digit verification code — and why you should ...

    www.aol.com/whats-six-digit-verification-code...

    Six-digit verification codes are a form of two-factor authentication, a process that helps keep your important online accounts secure. For example, you might get a text message or email with a six ...

  4. Personal identification number - Wikipedia

    en.wikipedia.org/wiki/Personal_identification_number

    A personal identification number (PIN; sometimes redundantly a PIN code or PIN number) is a numeric (sometimes alpha-numeric) passcode used in the process of authenticating a user accessing a system. The PIN has been the key to facilitating the private data exchange between different data-processing centers in computer networks for financial ...

  5. Sort code - Wikipedia

    en.wikipedia.org/wiki/Sort_code

    The sort code is usually formatted as three pairs of numbers, for example 12-34-56. It identifies both the bank (in the first digit or the first two digits) and the branch where the account is held. [1] Sort codes are encoded into International Bank Account Numbers (IBANs) but are not encoded into Business Identifier Codes (BICs).

  6. Payment card number - Wikipedia

    en.wikipedia.org/wiki/Payment_card_number

    The last digit is the Luhn check digit. IINs and PANs have a certain level of internal structure and share a common numbering scheme set by ISO/IEC 7812. The parts of the number are as follows: a six or eight-digit Issuer Identification Number (IIN), [a] the first digit of which is the major industry identifier (MII)

  7. Postal Index Number - Wikipedia

    en.wikipedia.org/wiki/Postal_Index_Number

    The third digit of a PIN, combined with the first two digits, represents a specific geographical region (except in the case of the functional zone for the Army) called a sorting district that is headquartered at the main post office of the largest city in the region and is known as the sorting office. A state may have one or more sorting ...

  8. 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 ...

  9. Contactless payment - Wikipedia

    en.wikipedia.org/wiki/Contactless_payment

    EMV contactless symbol used on compatible payment terminals. EMV stands for "Europay, Mastercard, and Visa", the three companies that created the standard.Contactless payment systems are credit cards and debit cards, key fobs, smart cards, or other devices, including smartphones and other mobile devices, that use radio-frequency identification (RFID) or near-field communication (NFC) for ...