Defcon's new badge is a security key you can see inside

See-through packaging

A removable chip lets hackers inspect their badge—and keep using it after Defcon.

All badges have a transparent, removable core module that functions as a standalone, open source hardware security token.

Andrew "Bunnie" Huang

It’s been a longtime feature of the annual Defcon hacker conference that attendees come away not only with knowledge of new software vulnerabilities and hacking techniques but also an elaborately designed conference badge—often electronic masterpieces embedded with intricate puzzles, complex crypto challenges, hidden Easter eggs, and even the mechanical gear trains of a watch.