Suno adds watermarks to AI music, seeks legal ground amid lawsuits

Suno, an AI music generation startup, is implementing watermarks and download limits in an effort to distance itself from accusations of copyright infringement and bulk content generation. The moves come as the company faces mounting legal challenges on multiple fronts, including copyright infringement lawsuits from Universal and Sony in the United States, a German court ruling that Suno violated the country's music licensing laws, and a Massachusetts lawsuit stemming from a late 2025 data breach and security incident.

The late 2025 hack proved particularly damaging to Suno's public image. During the breach, security researchers discovered that Suno had scraped music content from YouTube, Deezer, and other platforms to train its AI models—a practice the company had not publicly disclosed. The hack may have also exposed the private information of millions of users. Suno did not initially disclose the breach, adding to scrutiny around the company's transparency and operational practices.

In response, Suno is repositioning itself as a tool for musicians and personal creative work rather than a service for generating unlimited content at scale. Suno's CEO, Shulman, argued in a blog post that AI music technology "can't replace the human experiences, emotions, and imperfections that make music meaningful," framing Suno's role as an aid to artistic expression. The company has already implemented several safeguards: it prohibits users from including specific artists or songs in their prompts, and it has partnered with Musixmatch, a music rights and lyrics database, to prevent users from uploading copyrighted content to use as a base for generative compositions. Suno also strengthened prohibitions against misuse in an updated usage policy.

Last year, Suno reached a settlement with Warner Music Group that includes limits on downloads. The company stated that most users will not be affected by these new caps, though it is still finalizing the specifics of the arrangement. Watermarking and download restrictions are intended to curtail what Suno characterizes as "large-scale abuse" of the platform. Whether these steps will be sufficient to satisfy courts or reduce the legal exposure remains uncertain, as the company continues to defend itself against ongoing litigation from major record labels and regulatory authorities.