Andy Müller-Maguhn is a member of the German hacker association Chaos Computer Club (CCC). Having been a member since 1986, he was appointed as a spokesman for the club in 1990, and later served on its board until 2012. He runs a company that develops cryptophones.

The Chaos Computer Club (CCC) is Europe's largest association of hackers with 7,700 registered members. Founded in 1981, the association is incorporated as an eingetragener Verein in Germany, with local chapters in various cities in Germany and the surrounding countries, particularly where there are German-speaking communities. Since 1985, some chapters in Switzerland have organized an independent sister association called the Chaos Computer Club Schweiz (CCC-CH) instead.