A company that previously worked with the Cardano Foundation on different projects is now suing the organization. Z\/Yen Group Ltd. out of the U.K., which was previously a research partner for the blockchain company, has submitted a lawsuit against the Cardano Foundation, according to an announcement on the Cardano website, but no significant details are provided. Given the fact that the two entities worked together on several research projects, it could be that the suit is tied to an intellectual property dispute. Cardano states that it released the notice of the lawsuit because it wants to remain transparent. It adds, \u201cThe proceedings relate to an alleged agreement between the Z\/Yen Group Limited and the Cardano Foundation dated July 2017.\u201d However, that agreement was terminated early by Cardano for \u201cvarious reasons\u201d that the foundation didn\u2019t spell out. Less than two years ago, when the two entities were still on the same side, they published a joint report called \u201cThe Quantum Countdown: Quantum Computing and the Future of Distributed Ledger Encryption.\u201d It\u2019s possible that the lawsuit could be a result of work associated with that paper, especially since Cardano is apparently now working on quantum-resistant signatures. Charles Hoskinson, the founder of Cardano, is staying tight-lipped on the whole ordeal, only explaining in the company notice about the lawsuit, \u201cThe Cardano Foundation fully rejects the claims raised by the Z\/Yen Group Limited. Due to the ongoing nature of this judiciary process, no further information will be given while proceedings are in progress.\u201d While he may not have wanted to relay more details, consternation over the lack of substance forced his hand and he put together a YouTube video to provide a better description. He explains that it\u2019s \u201cold business\u201d not specific to Cardano and adds, \u201cIt\u2019s not an intellectual property dispute. It\u2019s merely a commercial dispute. IOHK has nothing to do with this issue. There is nothing in what Z\/Yen has done that has ended up in the protocol design the code or anything implemented in Cardano.\u201d He further explains, \u201cThis is old business stemming from the prior administration at the Cardano Foundation Michael Parsons. Parsons was a good friend with another businessman who\u2019s the Principal of Z\/Yen Group Limited. So the nature of that relationship, in my understanding of it, was that they would write a series of reports on behalf of the Cardano Foundation.\u201d He states the lawsuit is not for a particularly large amount of money, and that it\u2019s puzzling that Z\/Yen would choose a lawsuit over arbitration. He doesn\u2019t expect any disruptions in Cardano and reiterates that the dispute doesn\u2019t center on anything related to the Cardano project itself.