Apple likes to pride itself with strong security in iOS, but for all the platitudes the fact remains that the iPhone's Lock screen is one of iOS's weakest links. And now, YouTuber iDeviceHelp has discovered a new Lock screen vulnerability that lets anyone in possession of your iPhone bypass the passcode and get to your contacts and photos. The bug has been reported to Apple and should be fixed in a future update.
New Lock screen bug bypasses iPhone/iPad passcode, lets you see photos/contacts