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  2. Payment processor - Wikipedia

    en.wikipedia.org/wiki/Payment_processor

    Payment processor. A payment processor is a system that enables financial transactions, commonly employed by a merchant, to handle transactions with customers from various channels such as credit cards and debit cards or bank accounts. They are usually broken down into two types: front-end and back-end. Front-end processors have connections to ...

  3. Shift4 - Wikipedia

    en.wikipedia.org/wiki/Shift4

    Shift4 Payments, Inc. is an American payment processing company based in Allentown, Pennsylvania. [ 2][ 3] The company, founded in 1999 by the then 16-year-old Jared Isaacman, processes payments for over 200,000 businesses in the retail, hospitality, leisure and restaurant industries. [ 2][ 4] Shift4 specializes in commerce solutions such as ...

  4. Payment gateway - Wikipedia

    en.wikipedia.org/wiki/Payment_gateway

    A payment gateway is a merchant service provided by an e-commerce application service provider that authorizes credit card or direct payment processing for e-businesses, online retailers, bricks and clicks, or traditional brick and mortar. [1] The payment gateway may be provided by a bank to its customers, but can be provided by a specialised ...

  5. E-commerce payment system - Wikipedia

    en.wikipedia.org/wiki/E-commerce_payment_system

    Online merchants must comply with stringent rules stipulated by the credit and debit card issuers (e.g. Visa and Mastercard) in accordance with a bank and financial regulation in the countries where the debit/credit service conducts business. [2] [better source needed] E-commerce payment system often use B2B mode.

  6. AOL Mail

    mail.aol.com

    You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.

  7. TSYS - Wikipedia

    en.wikipedia.org/wiki/TSYS

    www .tsys .com. Footnotes / references. [ 1][ 2] Total System Services, Inc. (commonly referred to as TSYS ), is an American financial technology company headquartered in Columbus, Georgia. In 2019, TSYS was merged into Global Payments Inc. [ 3][ 4] TSYS is the largest third-party payment processor for issuing banks in North America, with a 40% ...

  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. Add, edit, or delete a payment method for AOL services

    help.aol.com/articles/update-your-payment-method

    Never worry about your AOL services or subscriptions going past due because your financial info changed. Add, edit, or delete the payment method used for AOL products and service right from your My Account page. To access your billing info, you'll need to sign in with your Primary username and password.