Apple iOS 9.0 has a nasty lockscreen bug that allows anyone to see your photos and contacts. The bug is reproducible with four- or six-number passcodes. Apple has rushed out a patch for the bug, but is the flaw actually fixed? Er, apparently not. In IT Blogwatch, bloggers experience dj vu all over again [RIP, Yogi]. Video proof of this and many previous similar iOS bugs, dating back to version 5.1.”]
Source: https://www.computerworld.com/article/2985778/apple-ios-901-lockscreen-bug-itbwcw.html