What The Hack 2005 Badge
Simple pre-electronic Dutch camp badge
A record for What The Hack 2005's simple camp identity-badge era, before the Dutch camp badge became an expected open-hardware device.
Year
2005 badges
Hacker conference badges documented for 2005, sorted by country.
DEF CON 13 Human Badge
Public-domain photographed pre-electronic identity badge
A DEF CON 13 human badge documented by a public-domain Wikimedia Commons original photo and an official pre-conference DEF CON forum note that the 2005 badges were ready before registration.