This highlights the "Hydra Effect" of digital security. While Nintendo can sue a development team or shut down a GitHub repository, the keys have already spread across Discord servers, Reddit threads, and torrent sites. Once a cryptographic secret is leaked onto the internet, it is effectively immortal. You cannot change the locks on millions of already-sold consoles.
Nintendo Switch decryption keys are the "passwords" that allow the system to unlock and run encrypted game data
Even without shipping keys, Yuzu’s default configuration expected prod.keys in a specific directory, and its developers published guides linking to key-dumping tools. The court found contributory and vicarious infringement.