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Old 11-25-2012, 11:30 AM   #12
ixtab
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Posts: 2,907
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Join Date: Dec 2011
Device: K3, K4, K5, KPW, KPW2
Quote:
Originally Posted by yiming View Post
@ixtab

is it possible for a firmware/OS to be so "well" written that it can't be jailbroken?
In principle, yes - even if that is *very* difficult. Essentially, it would mean that there is absolutely no "exploitable" bug anywhere, in any of the code.

I'm actually convinced that such a bug exists, somewhere, also in 5.3.0. The difficulty lies in actually finding it. Mind you, I did find multiple different bugs of varying severity* in 5.3.0, but none of them is severe enough to be used as a jailbreak vector.

(*) No, I'm not going to disclose them publicly. But don't worry: these things are being discussed internally, in a small circle of expert developers.

Last edited by ixtab; 11-25-2012 at 12:32 PM.
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