The flaw allowed anyone to access your photos and contacts by using Apple’s Siri from the lock screen when the device was locked.
Good news as Apple has now fixed the passcode flaw in iOS 9.3.1, the fix was done without the need for an update. As the issue was related to Apple’s Siri, Apple was able to fix the problem server side without having to release a software update.
Now if you as Apple’s Siri to ‘search Twitter’ whilst on the lock screen, Siri will now respond by telling you that ‘you’ll need to unlock your iPhone first’, so the passcode flaw has now been fixed.
According to 9 to 5 Mac, Apple has also fixed another flaw that allowed anyone to activate Night Shift Mode and also Low Power Mode when the handset was locked.
Source 9 to 5 MacFiled Under: Apple, Apple iPhone