> 2. Current iOS devices have security features in HFS+ that aren't present in macOS HFS+ (such as?). I believe it was mentioned in the WWDC APFS session that

> 2. Current iOS devices have security features in HFS+ that aren't present in macOS HFS+ (such as?). I believe it was mentioned in the WWDC APFS session that Apple maintain several folks of HFS+ for different platforms. For example, iOS version of HFS+ shipped with per-file encryption, which is not present elsewhere. Edit: from the transcript: https://developer.apple.com/videos/play/wwdc2016-701/?time=264 https://developer.apple.com/videos/play/wwdc2016-701/?time=2... > So on iOS today we already shipped a version of HFS+ that uses per file encryption. So every file is encrypted differently on storage form every other file on the file system. [...] We have an iOS specific variant of HFS+ as well as one that supports the per file encryption that we just discussed.