When you make a purchase, Apple Pay uses a device-specific number and a unique transaction code. Your full card number is never stored on your device or on Apple servers, and it can’t be shared with merchants. Apple Pay doesn’t keep transaction information that can be tied back to you, ensuring all purchases are private. For more information on Apple Pay security and privacy see
https://support.apple.com/en-au/HT203027
This product is currently available in Australia, New Zealand and United Kingdom