A german hacker in the 1980ties,called himself "hagbard" and his machine "fuckup".Supposedly inventor of the first trojan horse. Worked with DOB,pengo,urmel and was CCC affiliated.Was heavily influenced by the Illuminatus Trilogy by Robert Anton Wilson.He was involved in selling hacked information from US military computers to the KGB,cocaine addicted and got extremely paranoid and convinced he was fighting the Illuminati like Hagbard Celine in the fictious book. A movie has been made about his life which is called "23".It has been critized a lot by real life witnesses.More interesting is the documentation written by his friends,which you can find here: http://seti23.org/kk.html