Apple today patched a critical Mac OS X vulnerability used by a security researcher three weeks ago to win $10,000 for hacking Safari at the Pwn2Own contest.

The patch is the second resulting from the fourth annual Pwn2Own, which was held at the CanSecWest security conference in Vancouver, British Columbia March 24-26.

On the first day of the contest, Charlie Miller, an analyst at Baltimore-based Independent Security Evaluators, hacked Safari running on Mac OS X 10.6, aka Snow Leopard . Miller is the only researcher to ever win three times at Pwn2Own.

Today, Miller confirmed that the vulnerability Apple patched was the one he used last month to earn a $10,000 prize. "That must be it," he said. "I haven't given them any other bugs."

More: http://pcworld.com/article/194292/