OpenAI has issued a global ChatGPT security warning to millions of ChatGPT users following a breach at Mixpanel, a third-party analytics provider. The company has clarified that the breach primarily affected data from its API platform and assured users that no sensitive information was compromised. However, OpenAI is urging users, particularly those using its API services, to remain vigilant.
ChatGPT Security Warning: Data Breach Details

The security warning came after Mixpanel discovered that an attacker had gained unauthorized access to part of its systems on November 9. This breach resulted in the exposure of a limited subset of analytics data. Mixpanel then informed OpenAI of the incident, which affected a dataset containing customer-identifiable information. OpenAI received the full details of the affected data on November 25 and started issuing alerts shortly after.
Importantly, OpenAI confirmed that no chat histories, passwords, API keys, payment details, government IDs, or usage logs were compromised. The data exposed during the breach was limited to analytics information tied to OpenAI’s API product, used primarily by developers and organizations. Regular ChatGPT users, those interacting with the platform through the website or mobile app, are not impacted and do not need to take any action.
Who is Affected by the ChatGPT Security Warning?
While the breach has caused some concern, only API product users—such as developers, businesses, and organizations using OpenAI’s platform, are potentially affected. These users had their profile data exposed, including:
- Names
- Email addresses
- Approximate location based on browser data
- Operating system and browser details
- Referring websites
- Organization or user IDs
Although this information is not highly sensitive, OpenAI has warned it could be misused for phishing or social engineering attacks. As a precautionary measure, OpenAI has completely removed Mixpanel from its systems and will no longer use the service.
How to Stay Safe
OpenAI has urged all affected users to stay vigilant. API users are advised to:
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- Verify communications from OpenAI come from official domains
- Avoid clicking on unexpected links
- Never share sensitive information via email, text, or chat
- Enable multi-factor authentication for extra security
- Refrain from publicly sharing organization or user IDs
This breach serves as a reminder of the importance of security measures and staying alert to potential threats. OpenAI remains committed to transparency and ensuring the safety of its users’ data.
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