Felix von Leitner

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Felix von Leitner at Chaos Communication Congress 2009

Felix von Leitner, nicknamed Fefe, is a German IT security expert living in Berlin. He is the main author of the dietlibc, a C standard library. His personal blog posts have received larger media coverage in Germany.


In 2006, he analysed disadvantages of the planned "Gesundheitskarte" (health card).[1]

Following a debate on the notability of his blog in the German Wikipedia, a controversial debate on notability in Wikipedia was started.[2]

He played a crucial role in distributing videos of a case of abusive policing on the 2009 Freiheit statt Angst ("Freedom instead of fear") demonstration, that in the end led to the obligation of the Berlin police to wear identification badges.[3][4]

In 2011, prior to the publication of Mac OS X Lion, he accused Apple of doing too little for its security.[5]

Felix von Leitner was a long term member of the Chaos Computer Club Berlin[6](CCC).


  1. ^ heise online (in German)
  2. ^ orf.at (in German)
  3. ^ Demo gegen Überwachung: Faustschlag ins Gesicht (in German)
  4. ^ Morgenpost (in German)
  5. ^ Security experts take a close look at Lion
  6. ^ "Announcement about leaving CCC Berlin".

External links[edit]