Security Fest 2018 Challenge Badge
USB HID and serial puzzle badge
A simple Security Fest 2018 challenge badge with USB-A, two buttons, four DIP switches, red/green LEDs, HID text output, serial puzzle flow, and an open SecBadge hardware repository.
Tag dossier
Challenge Badge
Badge records tagged with Challenge Badge, across Czechia, Netherlands, Sweden, United States.
HackerHotel 2020 Badge
Mixed-reality escape-room challenge badge
A story-first challenge badge where the badge, hotel, terminal session, puzzles, and lore formed a mixed-reality escape room.
BSides Prague 2025 Electronic Badge
Czech Security BSides PCB badge with attendee chip challenges
A source-backed Czech Security BSides electronic badge record: the official BSides Prague 2025 schedule page announced a PCB badge powered by multiple processors, and a first-hand organizer retrospective documents the first generation of electronic badges, attendee chips, challenge XP, interactive panels, and nickname display.
Bug Bounty Village DC33 BBV Badge
Four-button, four-LED challenge badge
Bug Bounty Village's BBV Badge 2025 was a DEF CON 33 village challenge badge with four buttons, four corresponding LEDs, and a reward path for attendees who lit all four LEDs.