October 12, 2006 4:05 AM PDT
10: Worst hoax: Firefox zero-day flaw
Want to make dozens of Mozilla developers work on a weekend for no reason at all? Just do what hackers Mischa Spiegelmock and Andrew Wbeelsoi did at this year's ToorCon conference in San Diego.
A few days after announcing that they had found a JavaScript-handling flaw that could be exploited to attack Firefox users, Spiegelmock and Wbeelsoi said they were just kidding. The joke was so funny that the entire Firefox user base and Mozilla Foundation forgot to laugh.
Photo by Joris Evers/CNET News.com