Security and privacy are at the core of Apple Pay. If your iPhone, iPad or Apple Watch is ever lost, you can use Find My iPhone to put your device in Lost Mode to suspend Apple Pay, or you can wipe your device clean completely. You can also stop the ability to make payments with Apple Pay on iCloud.com. If you lose your device, your Suica balance is recoverable. When you use a credit or prepaid card with Apple Pay, the actual card numbers are not stored on the device, nor on Apple servers. Instead, a unique Device Account Number is assigned, encrypted and securely stored in the Secure Element on your device.