Opposing the Monetization of Linux: McHardy v. Geniatech & Addressing Copyright “Trolling” in Germany

Marcus von Welser


Over the past several years, many companies have received warning letters in Germany for GPL non-compliance from a particular programmer – Patrick McHardy. In these letters, the programmer regularly claimed to own copyrights in parts of the Linux kernel and requested that the addressees sign cease-and-desist declarations – subject to the payment of contractual penalties to him personally, in the event of future instances of non-compliance. This article describes court proceedings in Germany opposing the programmer's efforts, why Germany has been the venue of choice for these sorts of non-compliance assertions, how one particular company successfully defended itself, and discusses how other entities accused of non-compliance using these arguments can also pursue a successful defense.


Law; information technology; Free and Open Source Software; GPL; GNU General Public License; Copyright Enforcement; Linux; McHardy; Copyright Trolling; Litigation.

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