iOS 7 lockscreen hole discovered already - all your private photos could end up online!

Serial iOS bug finder videosdebarraquito has struck again.
He found a bug in the iOS 6.1.3 lockscreen, almost as soon as that update was published (an irony, given that the main purpose of 6.1.3 was to fix various lockscreen flaws).
Now he's made a video of himself bypassing the lock on just-released iOS 7.
(I've given you more than enough to find the video if you want. But I haven't provided a direct link here. Call me an old-school wowser. I can take it.)

Lock screens have a chequered security history, with Android having its recent share of problems, too.
The main reason is complexity, one of security's mortal enemies.
You can understand why some exceptions to a phone lock might be desirable, or even required by the regulators: the ability to call the emergency number, no matter what, for example.
Similarly, a clock is handy when the phone is locked, as well as an indication of whether there's network service available should you want to make a call.

So some "special case" programming is needed in phone lock software, which inevitably means more to go wrong with the part that implements the actual lock.
But functionality to check whether you've just dialled the three digits 112, 999, 000, 911, or some other well-known emergency number, and to update a digital clock once a minute, is a far cry from the feature set implemented by the average lockscreen app on a modern smartphone.

We're no longer content to have our phones locked: we want them locked, except for a huge raft of features.
 
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