Johannes Willbold is a PhD student at the Ruhr University Bochum and researches the software security of space and satellite systems. In 2023, he published at the IEEE S&P, and presented on venues, including Black Hat US, REcon and TyphoonCon. He organizes the yearly SpaceSec workshop (co-located with NDSS) and participated in the Hack-a-Sat 2 & 4 finals.