Very safe

When you add a credit or debit card to Apple Pay, the actual card number is neither stored on the device nor on Apple's servers. The system assigns a unique device account, encrypt the account, and store it in the device's security chip in a secure manner.

When used by customers, the actual card number is not displayed on the Apple device, only the last four digits of the newly generated virtual card (device account number) are displayed, while relying on dynamic security codes specific to each transaction to process payments. . As a result, Apple does not share customers' actual credit or debit card numbers with merchants, nor is this information transmitted when making payments.