The badge for THCon2026, a DVID board, had 2 firmware : the conference firmware, which was reversed by @virtualabs@mamot.fr here: https://virtualabs.fr/geekeries/thcon26-badge-writeup
and a challenge firmeware here: https://github.com/dvid-security/dvidv2-opensource/tree/main/workshop/thcon2026
That I solved here: https://cryptax.github.io/2026-06-thconbadge/ (writeup/spoiler).
#badge #hacking #challenge #ESP32 #thcon #writeup #spoiler
