OpenAI apologizes for big Mixpanel data breach that exposed emails and more

Techradar • November 28, 2025

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OpenAI has apologized for a data breach that compromised one of its partners; Mixpanel, a data analytics outfit that OpenAI used, had its systems ...

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

OpenAI Issues Apology Over Mixpanel Data Breach Exposing User Emails OpenAI has issued an apology following a data breach involving Mixpanel, a data analytics partner. The breach compromised user emails and other sensitive information, although OpenAI itself was not directly hacked. This incident raises concerns about third-party data security practices. 2 sources 43

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