Today is very worst day for Apple. Macrumors leaked very simple way for bypass iOS 9.3 (iOS 9.3.1) on iPhone and iPad. It's very strange situation because Apple testing their iOS 9.3 about 3 months, but new iOS 9.3 (incl. iOS 9.3.1) has bugs and errors.
The vulnerability enables unauthorized users to access photos iPhone 6s and iPhone 6s Plus owners. To resolve this bug you need to disable the feature that allows you to call Apple voice assistant on iOS 9.3.1 lock screen. Don't forget that it's new method for bypass without Jailbreak iOS 9.3.
How to Bypass iOS 9.3 on iPhone:
1) Enable "Siri personal assistant" on the lock screen,
2) The challenge Twitter team «Search Twitter» and search for any popular mail domain in the news bulletin, for example «at-sign yahoo dot com».
3) When the e-mail address appears in the list, you need to take advantage of 3D Touch menu and click "Create new contact".
4) In the "Contact Us" section of the application photos need to use the "Add photos" and click "Select Picture" from the library.
5) After that, the user is able to view photos that are on your iPhone.