Security and privacy are at the heart of Apple Pay. When you add a credit or debit card to Apple Pay, the card number itself is not stored on your device or on Apple servers. Instead, a unique device account number is assigned, which is encrypted and stored securely in your device's Secure Element chip. Each transaction is authorized thanks to a unique one-time secret code that is dynamically generated.
Apple Pay is very easy to set up, and users can continue to enjoy all the benefits and bonuses from using their credit and debit cards. You can pay with Apple Pay in stores with iPhone SE, iPhone 6 and later, and Apple Watch.
Apple Pay makes it super easy to make in-app and website purchases with the tap of your finger on Touch ID, no more manually filling out large contact documents or re-entering shipping and billing information. When you pay in apps or in Safari, Apple Pay works on iPhone 6 and later, iPad Pro, iPad Air 2, iPad mini 3 and later.
You can also use Apple Pay in Safari on any Mac from 2012 or later with macOS Sierra installed on your computer, confirming the payment from your iPhone 6 or later, or directly from your Apple Watch, or by tapping your finger on Touch ID on the new MacBook Pros.