March 2026
Intermediate to advanced
400 pages
15h 45m
English
Apple’s iOS is a slimmed-down version of Apple’s OS X, which is used in the company’s line of Mac computers. OS X is actually a derivative of the FreeBSD variant of UNIX code maintained by a large open-source community. Its security model is based on access control, application security, encryption, and isolation.
Apple uses a walled garden approach to security, restricting access to and downloads from websites other than its own App Store. This focus on application provenance through its iOS Developer Program and iOS Developer Enterprise Program is to ensure that users can trust the authenticity and integrity of applications in the App Store. Those who produce apps must register and pay to become ...
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