Mark Vogelsberger studied computer science at the University of Karlsruhe and theoretical physics and mathematics at the University of Mainz. In 2006 he finished his diploma thesis on dissipation processes in quantum mechanics. At the moment he is a PhD student of astrophysics at the Max-Planck-Institute for Astrophysics in Garching near Munich. There he is working on numerical methods and simulations to explore the small scale structure of dark matter. The goal is to make predictions for direct and indirect dark matter searches. Besides his research interests he has been working for the last ten years for the German Linux Magazin writing the monthly �InSecurity News� and other security related articles. He developed the Secumod security kernel module for SuSE Linux and worked for a while at the computing center of the University of Karlsruhe.