Observed Signal · Nov 27, 2025 · Security Incident · Source: Trending Topics · Impact: 3/5 · Sentiment: Negative
OpenAI ends Mixpanel partnership after data leak
OpenAI has informed users of its API platform about a security incident at analytics provider Mixpanel. The data leak only affects API platform users, not ChatGPT users. According to OpenAI, the breach occurred on November 9, 2025, when attackers gained unauthorized access to parts of Mixpanel's systems and exported a dataset with limited customer information and analytics data. Exposed data includes names, email addresses, approximate location, operating systems, browsers, referrer websites, and user/organization IDs. OpenAI states that no chats, API requests, credentials, or payment details were compromised. As a result, OpenAI terminated its partnership with Mixpanel and removed the integration from all production services. OpenAI is also conducting expanded security reviews across its vendor ecosystem. Mixpanel reported the incident as a smishing attack and has secured affected accounts.
Data leak at a major analytics vendor affecting OpenAI's developer platform triggers a partnership termination and renewed focus on vendor security, impacting trust and security practices in the AdTech ecosystem.
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Key Takeaways & Evidence Grounding
- Mixpanel discovered unauthorized access on November 9, 2025.
- Exposed data includes names, emails, approximate location, OS/browser, referrer, and IDs.
- OpenAI confirmed no breach of its own systems and terminated its partnership with Mixpanel.
- Mixpanel reported a smishing attack as the vector of the breach.
- Other Mixpanel customers include Joyn, LG, Pinterest, Workday, and Yelp.
Connected Companies & Entities
8 Entities mapped“OpenAI informs the users of its API platform about a security incident at the analytics provider Mixpanel....”
“Mixpanel has discovered unauthorized access to parts of its systems on November 9, 2025....”
“Among the customers are also Joyn, LG, Pinterest, Workday and Yelp....”
“Among the customers are also Joyn, LG, Pinterest, Workday and Yelp....”
“Among the customers are also Joyn, LG, Pinterest, Workday and Yelp....”
“Among the customers are also Joyn, LG, Pinterest, Workday and Yelp....”
“Among the customers are also Joyn, LG, Pinterest, Workday and Yelp....”
“Among the customers are also Joyn, LG, Pinterest, Workday and Yelp....”
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
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Hone Raises $60M for AI Agents
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Hone Raises $60M for AI Agents
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