At the time of the Worldwide Developers Conference, Apple announced three new features of iOS 10 relating to privacy, including encryption at the file system level , On-Device deep learning, as well as, a new cryptographic technique “Privacy Differential“.
A new file system, APFS, has also been introduced, which is designed as a replacement of the outdated HFS + file system, and which is optimized to work well both with flash storage options and modern CPU architectures, and it also offers the encryption support.