Industry Newsapi securitymixpanelopenaithird party risk
OpenAI Discloses Third-Party Mixpanel Data Breach
8.0
OpenAI disclosed a security incident involving its third-party analytics provider Mixpanel after an attacker accessed Mixpanel on Nov. 9, 2025 and exfiltrated customer data. OpenAI said the breach exposed a small amount of personally identifiable information for some platform.openai.com API users (not ChatGPT users), and Mixpanel shared the impacted dataset with OpenAI on Nov. 25, 2025.
Key Points
- 1Exposes small amount of PII from some OpenAI API users via Mixpanel breach on Nov 9, 2025
- 2Indicates vendor risk as breach occurred entirely within Mixpanel infrastructure, not OpenAI’s systems
- 3Practitioners should review third-party analytics use, access controls, and incident response for integrations
Scoring Rationale
Official vendor-confirmed breach and high relevance to platform security, limited by small PII exposure confined to some API users.
Sources
Public references used for this report.
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