In last year's contest, the iPhone did not get hacked.

After Miller tries to hack the MacBook Pro, another hacker is set to take on Internet Explorer. Contest winners will take home the device they hack, in addition to $10,000 in prize money for a Web browser attack and $15,000 for a mobile-device attack.

Google's Chrome browser, Firefox, the BlackBerry, a Nexus One and a Nokia E72 are also included in the contest.

Run in conjunction with the CanSecWest security conference, Pwn2Own has become a closely watched test of exploit-writing skills, where professional hackers routinely show up and demonstrate how easy it would be to break into a computer running the latest software.

The contest provides a high-profile demonstration of just how common exploitable software bugs really are, despite concerted efforts by companies such as Microsoft, Mozilla and Apple to lock down their code.