Apple Pay is safer than using a plastic credit, debit, or prepaid card. Every transaction on your iPhone, iPad, or Mac requires you to authenticate with Face ID, Touch ID, or your passcode.
Your Apple Watch is protected by the passcode that only you know, which is required every time you put on your Apple Watch or when you pay using Apple Pay.
Your ME card number isn’t stored on your device or on Apple servers. And it’s never shared with the person or merchant you’re paying – always ensuring privacy.