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2. What is a credit card security code? - AOL

   www.aol.com/finance/credit-card-security-code...

   A credit card security code is a three- or four-digit code that’s unique to your card. In case a merchant asks, the security code goes by a few different names , mainly the: Card Verification ...

3. How to find your credit card's security code - AOL

   www.aol.com/news/2010-06-24-how-to-find-your...

   On most cards the security code is located on the back, to the right of the signature block, but since it can move around here's an easy way to find the security code on any credit card.

4. Card security code - Wikipedia

   en.wikipedia.org/wiki/Card_security_code

   The card security code is located on the back of Mastercard, Visa, Discover, Diners Club, and JCB credit or debit cards and is typically a separate group of three digits to the right of the signature strip On American Express cards, the card security code is a printed, not embossed, group of four digits on the front towards the right

5. What Is a Credit Card Security Code and Why Is It ... - AOL

   www.aol.com/credit-card-security-code-why...

   A card security code is a three- or four-digit number on the back of credit and debit cards that ensures the authenticity of transactions when a physical card is not presented at the point of sale ...

6. Secure Electronic Transaction - Wikipedia

   en.wikipedia.org/wiki/Secure_Electronic_Transaction

   Secure Electronic Transaction (SET) is a communications protocol standard for securing credit card transactions over networks, specifically, the Internet.SET was not itself a payment system, but rather a set of security protocols and formats that enabled users to employ the existing credit card payment infrastructure on an open network in a secure fashion.

7. Payment card - Wikipedia

   en.wikipedia.org/wiki/Payment_card

   Depending on the issuing bank and the preferences of the client, this may allow the card to be used as an ATM card, enabling transactions at automatic teller machines; or as a debit card, linked to the client's bank account and able to be used for making purchases at the point of sale; or as a credit card attached to a revolving credit line ...