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2. How to make payments with your phone - AOL

   www.aol.com/finance/payments-phone-164336000.html

   First, add your credit and/or debit cards to Apple Pay. Open the Wallet app on your iPhone, tap the plus sign and follow the instructions to add a new card to Wallet. Once you’ve added the card ...

3. Near-field communication - Wikipedia

   en.wikipedia.org/wiki/Near-field_communication

   This chip is commonly found in smartphones and other NFC devices. Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 centimetres (1.6 in) or less. [1] NFC offers a low-speed connection through a simple setup that can be used for the bootstrapping of ...

4. Apple Pay - Wikipedia

   en.wikipedia.org/wiki/Apple_Pay

   Apple Pay is a mobile payment service by Apple Inc. that allows users to make payments in person, in iOS apps, and on the web. Supported on iPhone, Apple Watch, iPad, Mac, and Vision Pro, Apple Pay digitizes and can replace a credit or debit card chip and PIN transaction at a contactless-capable point-of-sale terminal.

5. Square (financial services) - Wikipedia

   en.wikipedia.org/wiki/Square_(financial_services)

   It accepts credit card payments by connecting to a mobile device's audio jack. The original version consisted of a read head directly wired to a 3.5 mm audio jack, through which unencrypted, analog card information was fed to smartphones for amplification and digitization. [41] Square Reader also supports Apple Lightning on post-2018 products.

6. Is it safe to give an app my credit card information? - AOL

   www.aol.com/finance/safe-app-credit-card...

   The bottom line. Popular credit card-based apps such as Uber, Lyft, Google Pay and DoorDash will ask for your credit card information for convenience of use. Considering there are standards that ...

7. 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 ...