Radix Security

Radix Security GmbH was founded in 2022 in Bochum, Germany, by David Rupprecht and Katharina Kohls, both mobile-network security researchers at Ruhr-Universität Bochum. Rupprecht’s doctoral research focused on 4G and 5G network security, and the company was incubated through the university’s Cube 5 program with support from German federal (BMBF) funding.

The company’s product automates penetration testing of 5G and emerging 6G networks, targeting a specific and growing niche: operators of private 5G “campus networks” at factories, universities, and industrial sites, who typically lack the specialist telecom-security staff that mobile carriers have. Germany alone has roughly 300 such campus networks, including one operated by Ruhr-Universität Bochum itself for research. Radix’s pitch is to let these operators run automated, repeatable security assessments of their own network deployments rather than relying on expensive one-off expert audits.

Radix is very early-stage: it is grant- and incubator-backed rather than venture-funded as far as public records show, with a tiny team built around its academic founders. There is no evidence yet of named commercial customers or third-party efficacy testing; its credibility currently rests on the founders’ peer-reviewed security research rather than market traction.