In 2015 Markus was permitted to moderate the panel “Open Source” at the OSBA and MFG’s Open! 2015. I was happy to welcome Malte Spitz and other prominent experts. Well, here’s my report (sorry, German only!). Interesting fact: We were among the first to demand “Public money, public code!”, and I love Malte Spitz’s quotes: “There’s no provable security without open source.” “Data protection is like the environmental protection of the future.”