When you use Apple Pay, Apple processes your payment information including device account numbers, transaction information, and your approximate location at the time of purchase to facilitate payments and prevent fraud.
Financial transaction data is highly sensitive and its collection — combined with location data — creates a detailed profile of your purchasing behavior that could be used for profiling, targeting, or exposed in a data breach.
Apple collects a broad range of personal data including location, health and fitness information, financial data, voice recordings, and browsing and search history across its entire ecosystem of devices and services, and shares this information with Apple subsidiaries worldwide, app developers, business partners, and advertisers. While Apple publicly commits to not selling personal data, the policy permits extensive intra-group sharing and third-party disclosures that may not be fully transparent to average consumers. You can review, download, correct, or delete your personal data by visiting privacy.apple.com and signing in with your Apple ID.