Apple Inc on Nov 6 published four new papers outlining technical details of how some of the privacy features in its most recent operating systems work.
The white papers are similar to a security guide that Apple publishes for the iOS operating system that powers iPhones. They cover Apple's photo app, its Safari web browser, the location-based services on its mobile devices and a new service for signing into third-party apps introduced this year that competes with similar services from Facebook Inc and Alphabet Inc's Google.