News.Bloomberglaw OpenAI Faces Class Action Over Data Privacy Breach Linked to Mixpanel
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- •A class-action lawsuit against OpenAI and Mixpanel was dismissed on May 11, 2026.
- •The breach involved user data from OpenAI's API and affected ChatGPT users.
- •A new class-action lawsuit was filed against OpenAI on May 14, 2026, over privacy concerns.
A California resident filed a class-action lawsuit against OpenAI and Mixpanel, claiming inadequate protection of user data following a data breach at Mixpanel. The breach affected analytics data for users of OpenAI's API, including some ChatGPT users who submitted help center tickets. The lawsuit was voluntarily dismissed on May 11, 2026. In a separate development, another class-action lawsuit was filed against OpenAI on May 14, 2026, alleging that the company integrated Meta's Pixel and Google Analytics into its ChatGPT interface, potentially compromising user privacy by turning sensitive conversations into trackable data for advertisers. This new lawsuit is ongoing, and the implications for user privacy and data protection are significant.
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