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In any event, the hack used by the man that broke into the MB Air seems to have been a problem with Safari, and it might be an overstatement to say that the same hack would have worked with pretty much any other browser. I guess my question is a) could the original hacker use the same method on the the other two machines, or the rules only allow one "winner" per box? b) Is the hack known by other people who could try to exploit it (I know that the original hacker had to sign a non-disclosure agreement, just wondering whether other people could have come to the same idea independently) on the other machines, but failed?

I think it is fair to say that Microsoft does now take security pretty seriously, so it probably is quite difficult to hack Internet Explorer.

However according to this article on last years conference. Internet Explorer hacks were worth a lot of money, so people wouldn't attempt them. This could well have been the case here, in which case Microsoft needs to stop gloating.
 
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