Apple publishes new technical details on privacy features

Apple Inc on Wednesday 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.

Apple does not make public the code for its operating systems or software, so privacy and security researchers use the descriptions it publishes to understand how those systems work.