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  2. Card Transaction Data - Wikipedia

    en.wikipedia.org/wiki/Card_Transaction_Data

    Card transaction data is financial data generally collected through the transfer of funds between a card holder's account and a business's account. [1] It consists of the use of either a debit card or a credit card to generate data on the transfer for the purchase of goods or services.

  3. Data retention - Wikipedia

    en.wikipedia.org/wiki/Data_retention

    Resellers of mobile subscriptions or pre-paid cards must verify the identity of purchasers and retain a photocopy of identity cards. Telephony data Data, including location data, on fixed line and mobile telephony must be retained for 24 months. There is no requirement to store the content of calls.

  4. What do the numbers on your credit card mean? - AOL

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

    Credit cards have 15 or 16 digits depending on the credit card network being used. For example, Discover, Mastercard and Visa credit cards all have 16 digits, whereas American Express credit cards ...

  5. Authorization hold - Wikipedia

    en.wikipedia.org/wiki/Authorization_hold

    Authorization hold (also card authorization, preauthorization, or preauth) is a service offered by credit and debit card providers whereby the provider puts a hold of the amount approved by the cardholder, reducing the balance of available funds until the merchant clears the transaction (also called settlement), after the transaction is completed or aborted, or because the hold expires.

  6. 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 person.

  7. 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 ...

  8. ISO/IEC 7813 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_7813

    ISO/IEC 7813 is an international standard codified by the International Organization for Standardization and International Electrotechnical Commission that defines properties of financial transaction cards, such as ATM or credit cards. [1]

  9. Account Management - AOL Help

    help.aol.com/products/my-account

    Learn how to manage everything that concerns your AOL Account starting with your AOL username, password, account security question and more.