Add-on dossier

HID and serial puzzle flow

A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.

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Security Fest 2018 Challenge Badge historical

challenge software

The badge presents itself as both HID and serial; HID button output gives onboarding and clues, while listening on the serial interface reveals the path into the PGP/key-recovery challenge.

Badge: Security Fest 2018 Challenge Badge
Type: challenge software
Status: historical
Compatibility: Security Fest 2018 Challenge Badge
Source: https://zeta-two.com/hardware/2018/07/20/securityfest-badge-pirateradio.html

Badge context

Related Resources

bill of materials

SecBadge BOM

BOM listing the 69x43 mm board's ATmega32U4, USB-A connector, four-position DIP switch, two tactile switches, red/green LEDs, crystal, passives, and ISP header.

Badge: Security Fest 2018 Challenge Badge

field writeup

Security Fest 2018 challenge badge writeup

Zeta-Two field report documenting the challenge badge, HID/serial behavior, DIP-switch clue paths, prize flow, and community attribution.

Badge: Security Fest 2018 Challenge Badge

source

SecBadge repository

Public hardware repository with board files, schematic/layout assets, firmware directory, and Gerbers for the challenge badge.

Badge: Security Fest 2018 Challenge Badge

Source trail

Evidence Sources

GitHub / znibb · retrieved 2026-05-15

SecBadge

Primary open-hardware source for board dimensions, design files, Gerbers, firmware directory, and component evidence.

Badge: Security Fest 2018 Challenge Badge

Zeta-Two · retrieved 2026-05-15

Security Fest 2018 Challenge Badge & Prize Assembly

Primary field source for challenge behavior, HID/serial lore, clue flow, prize context, Weckzen attribution, and Zkylark Electronics thanks.

Badge: Security Fest 2018 Challenge Badge