Joe Grand
Hardware
Hardware hacker publicly known as Kingpin, L0pht member, and creator of JTAGulator.
Reviewed: 2026-10-16

Joe Grand — member of → L0pht
Date: Unknown
Public biography.
https://grandideastudio.com/about/

Joe Grand — created → JTAGulator
Date: Unknown
Repository says maintenance transferred in July 2025; creator is not necessarily current maintainer.
https://github.com/grandideastudio/jtagulator

Joe Grand — designed → DEF CON 14 badge
Date: 2006
A concrete PIC10F202 microcontroller artifact.
https://grandideastudio.com/portfolio/other/defcon-14-badge/