Artificial intelligence giant OpenAI experienced a security breach stemming from its analytics service provider, Mixpanel. The OpenAI Mixpanel data breach exposed personal information, such as the names and email addresses of some API users. This has raised concerns among developers and businesses using the company’s platform.

Details and Scope of the OpenAI Mixpanel Data Breach

OpenAI was notified by Mixpanel on November 25, 2025. It was revealed that unauthorized access had been gained to the systems of Mixpanel, a third-party service provider. As a result of this attack, a file containing data belonging to users of OpenAI’s API platform (platform.openai.com) was exported.

Investigations revealed that the leaked data was limited. The affected information included users’ names, email addresses, and general location information (city, country). The data also included the operating system and browser users used to access the system. Fortunately, critical data such as credit card information, passwords, or API keys were not affected by the breach.

Immediately following the incident, the company completely shut down data flow to Mixpanel. Security teams have terminated Mixpanel use and launched a risk analysis. OpenAI has begun sending emails to notify affected users. It also announced that it has tightened its security protocols with third-party vendors to prevent similar incidents from occurring again.

Experts recommend caution against phishing attacks following this breach. Users whose email addresses have been compromised should be vigilant against fake OpenAI notifications. Be especially suspicious of emails requesting password resets or payment requests. Be sure to activate two-factor authentication (2FA) for the security of your account.

So, what are your thoughts on the OpenAI Mixpanel data breach? Share your thoughts with us in the comments!