Felix von Leitner, nicknamed Fefe, has been operating a small IT security company called Code Blau, which specializes in code audits and security concepts (but tends to do other things as well), for almost 20 years. In the German-speaking area, he is well-known for his blog and for his podcast “Alternativlos” (no alternative) as well as for the talks at the Chaos Communication Congress he has been giving annually since the last millennium. When he is not busy being upset about the Wikipedia entry under his name, which was created by a few nasty data protection antiactivists against his explicit will, Felix might well be explaining to German members of parliament what an exploit is.