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2. Visa Inc. - Wikipedia

   en.wikipedia.org/wiki/Visa_Inc.

   Visa Inc. Visa Inc. ( / ˈviːzə, ˈviːsə /; stylized as VISA) is an American multinational payment card services corporation headquartered in San Francisco, California. [1] [4] It facilitates electronic funds transfers throughout the world, most commonly through Visa-branded credit cards, debit cards and prepaid cards. [5]

3. Credit card - Wikipedia

   en.wikipedia.org/wiki/Credit_card

   For example, most modern credit cards have a watermark that will fluoresce under ultraviolet light. Most major credit cards have a hologram. A Visa card has a letter V superimposed over the regular Visa logo and a MasterCard has the letters MC across the front of the card. Older Visa cards have a bald eagle or dove across the front.

4. Payment card number - Wikipedia

   en.wikipedia.org/wiki/Payment_card_number

   A payment card number, primary account number ( PAN ), or simply a card number, is the card identifier found on payment cards, such as credit cards and debit cards, as well as stored-value cards, gift cards and other similar cards. In some situations the card number is referred to as a bank card number.

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. 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 U.S. Patent No. 2,950,048, granted on August 23, 1960.

7. Priceless (advertising campaign) - Wikipedia

   en.wikipedia.org/wiki/Priceless_(advertising...

   The purpose of the campaign is to position Mastercard as a friendly credit card company with a sense of humor, as well as responding to the public's worry that everything is being commodified and that people are becoming too materialistic.