What technology does Apple use for secure payment transactions via mobile devices?

Apple Pay is the technology used by Apple for secure payment transactions via mobile devices. It allows users to make purchases in-person, online, and within apps using their Apple devices. The security of Apple Pay is enhanced through features such as tokenization, which replaces sensitive card information with a unique identifier during transactions, and biometric authentication methods like Touch ID or Face ID, ensuring that only the device owner can authorize payments.

This secure payment method is designed to seamlessly integrate with devices such as the iPhone and Apple Watch, making it convenient for users while maintaining high standards of security. The use of Near Field Communication (NFC) technology also enables quick transactions at retail points of sale, further emphasizing the user-friendly aspect of mobile payments with Apple Pay.