Skip to main content

Defcon Roundup

Defcon banner

Defcon banner

This year's unique circuit board badge. A small chip controls the two blue LED lights. Attendees were encouraged to come up with the most unique badge hack.

This year’s unique circuit board badge. A small chip controls the two blue LED lights. Attendees were encouraged to come up with the most unique badge hack.

Joe Grand cradles his creation

Joe Grand cradles his creation

All the colored badges on Joe's neck. Badges are color coded according to a person's task. Regular attendees received a white badge, while security personal and staff received red badges.

All the colored badges on Joe’s neck. Badges are color coded according to a person’s task. Regular attendees received a white badge, while security personal and staff received red badges.

Attendees furiously try to hack the badge. Photo courtesy of Robert McLaughlin, InfoSec News.

Attendees furiously try to hack the badge. Photo courtesy of Robert McLaughlin, InfoSec News.

One attendee made flames come out the front.

One attendee made flames come out the front.

Joe Grand helps attendee start his audio badge hack. The attendee rigged the badge's flashing lights to fire off an audio synthesizer.

Joe Grand helps attendee start his audio badge hack. The attendee rigged the badge’s flashing lights to fire off an audio synthesizer.

During closing ceromonies, all the attendees turn on their badges in darkness.

During closing ceromonies, all the attendees turn on their badges in darkness.

Audience caught in mid-flash.

Audience caught in mid-flash.

Dramatic shadow on the wall.

Dramatic shadow on the wall.

Defcon's security staff wear red shirts and valiantly stay sober to help attendees.

Defcon’s security staff wear red shirts and valiantly stay sober to help attendees.