Suno Data Breach Exposes 55 Million Users as Hack Reveals YouTube Music Scraping Operations

Reviewed byNidhi Govil

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AI music generator Suno suffered a cyberattack in November 2025 that exposed personal data of over 55 million users, including email addresses, phone numbers, and partial payment card details. The breach also revealed source code showing how Suno allegedly scraped millions of songs from YouTube Music, Deezer, and Genius to train its AI models—fueling ongoing copyright lawsuits from major record labels.

Massive Data Breach Affects 55 Million Suno Users

The AI music generator Suno experienced a significant data breach in November 2025 that compromised the personal information of more than 55.3 million users, according to Have I Been Pwned, the data breach notification service run by security researcher Troy Hunt

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. The cyberattack, which remained undisclosed by the company for months, only came to light through reporting by 404 Media

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Source: CNET

Source: CNET

The stolen user data included names, physical addresses, email addresses, phone numbers, purchase records, and partial payment card numbers extracted from the company's Stripe account, including card expiry dates

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. Tens of thousands of Stripe payment data records were compromised, revealing purchase amounts and the last four digits of credit card numbers

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. Despite the scale of the incident, Suno has not publicly disclosed the cyberattack or notified affected individuals that their information was taken

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Suno Source Code Hack Exposes AI Training Methods

The breach extended beyond user data. A hacker identifying as "ellie.191" used a supply chain attack to access an employee's credentials, subsequently obtaining source code that revealed how the Suno AI music generator allegedly scraped decades of audio from multiple platforms

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. The leaked materials included Suno source code from 2023 and 2024, alongside scraping instructions to pull audio files from YouTube Music, Deezer, Genius, Pond5, Jamendo, Freesound, and the International Music Score Library Project

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Source: Gizmodo

Source: Gizmodo

One file showed that Suno had consumed over 2 million clips in a folder labeled "youtube_music" at the time it was last updated

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. Additional files revealed that datasets compiled by Suno included more than 17,000 hours of music from Genius HQ, over 12,000 hours from streaming service Deezer, and more than 62,000 hours from Pond5, a Shutterstock-owned stock music site

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. The leaked code also suggests Suno used a third-party company called Bright Data to scrape music from YouTube, and actively searched for acapella versions of songs to source vocal-only audio

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. Suno reportedly sought to download roughly 1 million hours of podcasts via an online tool called PodcastIndex

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Copyright Infringement Lawsuits Gain New Evidence

The hack seemingly validates allegations in copyright infringement lawsuits brought against Suno by major record labels

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. The Recording Industry Association of America filed suit on behalf of record labels including Universal Music Group, Sony Music Entertainment, and Warner Music Group, representing artists such as Bruce Springsteen, Beyoncé, Taylor Swift, and Dua Lipa

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Suno previously admitted that it trains its AI on "publicly available music files" on the open internet, arguing that its use of copyrighted material falls under the fair use doctrine—a subjective carve-out of copyright law

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. However, the record labels argue that it is illegal under the Digital Millennium Copyright Act to deliberately circumvent YouTube's protections against data scraping, and that such actions violate YouTube's terms of service

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. An amendment filed by the Recording Industry Association of America alleges that Suno unlawfully engaged in "stream ripping" tracks from the platform

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While Warner Music Group has since settled its litigation with Suno and begun a commercial partnership with the AI company, Sony and Universal Music Group continue their claims in court

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. Udio, a competitor to Suno, has also been accused of scraping YouTube data in similar lawsuits

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Company Response Raises Questions About Transparency

Suno's response to the incident has been minimal. The company claims this was a "limited security incident that was quickly contained" and states it became aware of the breach in November 2025

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. A Suno spokesperson told media outlets that the company immediately investigated and verified that the incident "primarily involved outdated source code that is no longer in use at Suno and that no sensitive personal information was compromised"

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The company also denies having access to customers' full credit card numbers and concluded that under current privacy laws, it did not need to notify individual users

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. However, customers contacted by 404 Media confirmed they had signed up for the service and said Suno never notified them about the security breach

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. Suno co-founder Mikey Shulman did not respond to requests for comment about the incident

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Source: TechCrunch

Source: TechCrunch

Implications for AI Training Data Practices

This breach offers a rare glimpse into how generative AI companies acquire and process AI training data, pulling back the curtain on practices that tech companies typically guard closely

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. The incident highlights tensions between AI companies claiming to democratize creative access and human artists who say AI uses their work without permission to create cheap imitations. Even when record labels strike deals with AI companies, musicians report receiving no compensation for the use of their songs

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The legal landscape remains uncertain. Like other AI companies, Suno is claiming its use of original material as training data is legal under fair use. Anthropic and Meta won similar lawsuits brought by authors claiming infringement last summer

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. Whether courts will accept this argument when applied to music streaming platforms with explicit anti-scraping protections remains to be seen. The outcome of these cases could establish precedents that shape how AI companies source training materials across creative industries.

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