Hacked source code from AI music company Suno lists YouTube Music, Deezer and Genius among the platforms it scraped to build its artificial intelligence models, according to a report published Wednesday by 404 Media, adding new detail to allegations at the center of an ongoing copyright lawsuit brought by two of the world's largest record labels.

The code was obtained by a hacker who breached Suno's systems and shared the material with the publication. According to the report, the same hacker also accessed information on hundreds of thousands of Suno customers, including email addresses, phone numbers and Stripe payment details tied to their accounts.

The hacked material corroborates allegations made by Universal Music Group and Sony Music Entertainment, who are suing Suno for copyright infringement in a case coordinated by the Recording Industry Association of America. Suno has already acknowledged in a court filing that its training data was drawn from music available across the open internet, and the company has argued that training its AI models on copyrighted material qualifies as protected fair use under copyright law. In that filing, Suno described its training data as encompassing nearly all music files of reasonable quality accessible on the open internet, while claiming it respected paywalls and password protections in the process.

According to 404 Media, the hacked code names the specific sources Suno drew from and logs the volume of material collected from each. Internal comments in one file referenced pulling from platforms including Genius, YouTube Music, Freesound, Jamendo and Deezer, with a note indicating that non-music content would be filtered out of the resulting dataset. A file labeled "youtube_music" recorded that the........

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