"In less than 10 seconds Charlie Miller could open his MacBook
with Safari and promptly won the $5,000 Zero Day Initiative prize.
After jury members clicked a specially prepared link, Miller could
control the system through an undocumented security hole.
"Internet Explorer 8 was the next victim (ironically almost
parallel to its official start in Las Vegas) to follow the MacBook
pattern. A hacker named simply Nils used an undocumented
vulnerability to control the Windows 7 subsystem and won another
$5,00 prize from ZDI."