Every time you hand over your credit card to pay, your card number and identity are visible, and swiping your card triggers an exchange of information. With Apple Pay, instead of using your actual credit card numbers when you add your card, a unique Device Account Number is assigned, encrypted and securely stored in the Secure Element, a dedicated chip in iPhone, iPad and Apple Watch. When you make a purchase, the Device Account Number, along with a transaction-specific dynamic security code, is used to process your payment. So your actual credit card numbers are never shared by Apple with merchants or transmitted with payment. And unlike credit cards, on iPhone and iPad every payment requires Touch ID or a passcode, and Apple Watch must be unlocked — so only you can make payments from your device.