Issue dossier

Public firmware-hacking notes warned that badge resets could be caused by the battery touching metal and suggested insulating with the lanyard cloth.

A linkable camp-impact record with badge context, severity, evidence confidence, and source notes.

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battery short caveat · technical writeup · documented

The catalogue records practical handling behavior that matters for surviving badges and post-event hacking.

Badge
DEF CON 27 Badge
Category
battery short caveat
Severity
note
Confidence
technical writeup
Status
documented
Timeframe
DEF CON 27 badge hacking
Source note
DEFCON 27 badge firmware/writeup sources.

Evidence

Related Resources

Source trail

Evidence Sources

Grand Idea Studio · retrieved 2026-05-15

DEFCON 27 Badge

Primary project source for official files, firmware, fixtures, linked hacking projects, NFMI security research, and badge-game framing.

Badge: DEF CON 27 Badge

Grand Idea Studio · retrieved 2026-05-15

dc27_bdg_img1.jpg

Image-provenance source for the official DEF CON 27 badge photo published on the Grand Idea Studio project page; the page states that all designs are distributed under Creative Commons Attribution 4.0 International.

Badge: DEF CON 27 Badge

rhye.org · retrieved 2026-05-15

DEFCON 27: Badge Writeup

Technical writeup source for KL27P64M48SF2, NXH2261UK NFMI, badge-type byte behavior, UART/SWD paths, firmware build changes, and chameleon firmware.

Badge: DEF CON 27 Badge