One year after launching a controversial Macintosh hacking contest, the promoters of the CanSecWest security research conference are thinking about giving hackers another shot at cracking the Mac. Only this time, they're looking to broaden the field.

Last year, show organizers invited attendees to hack into a Macintosh laptop, with the successful hacker winning the computer and a cash prize. But this year they're talking about giving attendees three targets to choose from. "We're thinking of having a contest where we have Vista and OS X and Linux ... and see which one goes first," said Dragos Ruiu, the principal organizer of CanSecWest.

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