Skip to content

DEF CON 34 talks are here: 354 talks, summarized and searchable.

Browse DEF CON 34

Cat-Shaped Hacker Hardware: How I Accidentally Made a Business at 18

Alex Lynd

HardwareTalks53 minBeginnerOpen on YouTube ↗

Where

Talks
A New HOPE

Duration

53 min

Traces how a cat-shaped beginner hacking board grew from a spare-parts side project into a product, and the design missteps behind it.

Summary

Alex Lynd recounts how a favor to a friend, selling leftover microcontrollers and screens, grew into a small hardware business built around the WiFi Nugget, a cat-shaped, Game Boy-style board for cybersecurity beginners. He starts with his own background in low-cost microcontrollers and signals intelligence, including a wardriving project and a commissioned device that tracked a lost phone by its probe requests.

The middle of the talk covers the design missteps. The first board was an all-in-one multi-tool meant to suit everyone, which left users unsure what it was for. The team then juggled several form factors, two microcontroller variants with overlapping names, and a software line that added to the confusion. Lynd contrasts this with a well-known security vendor whose devices each serve one clear use case. The cat theme eventually became the differentiator, and the team narrowed the product to a single board with a WiFi attack interface, followed by a USB attack package used for a soft launch of 300 units.

To close, Lynd distills a few lessons: pick one audience and one purpose, keep the product explainable in a single sentence, and build a brand around what sets it apart. He also describes a batch of 500 outsourced boards that arrived faulty because a swapped component was never tested, a reminder to validate every part before production.

Related talks

Talks·50 min

  • CactusCon
  • Hardware
  • Date: Feb 2026
  • Location: AZ

cybaix

Badge Pirates walk through building the CC14 ESP32-S3 conference badge and show attendees how to modify it.

hardwareembeddedbuilding+2