Tag dossier
Badge records tagged with USB CDC, across Sweden, United States.
TYMKRS cubic mesh-network puzzle badge
The CypherCon 2.0 Cube was a three-dimensional electronic badge by TYMKRS, assembled from cube-edge PCBs with LEDs, microprocessors, buses, USB, battery charging, mesh-network behavior, text-adventure firmware, and a badge-to-badge programming premise.
Published pre-event RP2354 BadgeLife village badge; allocation and handoff unverified
Badge.Life's public archive documents Badgey Bodgerton as the Badgelife Village Badge for DC34 / 2026. Its published guide names an RP2354 microcontroller with integrated flash, eight addressable RGB NeoPixel LEDs, three user buttons, one user-installed 3 mm challenge LED and polarized buzzer, USB-C power, USB CDC serial CLI, UF2 firmware flashing, a single-cell 18650 battery with charging and protection circuitry, two Simple Add-On v2 headers, and an infrared receiver. It also documents a supplied bodge-wire challenge and supplied LED/resistor/buzzer challenge parts. This establishes a distinct, technically documented pre-event BadgeLife village electronic badge, not proof that DEF CON designed, issued, or will distribute it; that it is a Human admission credential; that every participant receives one; that a final badge run, pickup, or delivery occurred; or that any displayed image is cleared for reuse.
Source-backed RP2040 LED-matrix conference badge
Security Fest 2026's public firmware repository identifies this as the official conference badge: a small, hackable RP2040 device with a 9×9 LED matrix, six buttons, USB surface, and public firmware. The official event site confirms the completed May 28-29 Gothenburg conference, while a contemporaneous attendee report credits Carl Vargklint's badge work. Allocation and delivery are not documented.