Jochim Selzer is a full-time applications administrator at a large international logistics company. He is also a volunteer member of the speaker circle of the Chaos Computer Club and has been organizing seminars on digital self-defense for laypeople since 2013. Since 2008, he has been the data protection officer for several institutions of the Evangelical Church. Additionally, he is a lecturer for the DGB-Bildungswerk, IG BCE, and IG Metall.