Apple has announced a new feature called Tap to Pay on iPhone, which allows merchants to accept contactless payments using their iPhone and a partner-enabled iOS app. This feature will be available to payment platforms and app developers to integrate into their iOS apps, with Stripe being the first to offer it to their business customers. The payment process uses NFC technology and does not require any additional hardware. Apple emphasizes the security and privacy of the feature, with transactions being encrypted and processed using the Secure Element.