Slideshow: Hackers Fight Authority in NYC

The Man keeping you down? The sixth-annual Hackers on Planet Earth conference doles out briefings on picking locks, jamming phones and beating wiretaps. There was only one arrest. Annalee Newitz reports from New York.
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3ric Johanson, Brandon Uttech and Raven Alder (left to right) speak to a packed audience about several dangerous vulnerabilities wardrivers discovered in hundreds of wireless networks (many corporate).Photo: Jacob Appelbaum

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Homemade T-shirts are for sale at the Prometheus Radio booth.

Photo: Jacob Appelbaum
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Keynote speaker Michael Hart, founder of Project Gutenberg, poses with conference co-organizer and Project Gutenberg contributor Greg Newby. Hart said he has created more than 20,000 free, online e-books for the project since he started in 1971.

Photo: Jacob Appelbaum
Image may contain Human Person Clothing Apparel Karen Hughes Electronics Computer and Tanmoy Bose

Researchers Eric Cronen, Sandy Clark, Micah Sherr and Matt Blaze (left to right) pose with law-enforcement wiretap equipment they bought on eBay. They discovered easy ways to defeat wiretaps using simple tones.

Photo: Jacob Appelbaum
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Ladyada, who taught HOPE attendees how to build a cell-phone jammer, shows off one of her hacked toys, the open-source x0xb0x (a clone of Roland's TB-303 synthesizer).

Photo: Jacob Appelbaum