Cybersafetyconnections December 8, 2025, vol# 247 

  • From openai.com Open AI reported a data breach at a third-party analytic provider Mixpanel. 
  • The data breach involved limited analytics data related to some users of the API.  
  • The data breach was due to vulnerability in the third-party provider  Mixpanel system. 
  • No cybercriminal claimed responsibility for the attack. 
  • Here is how OpenAI mitigated loss from the cyberattack. 

What happened? 

OpenAI rende disponibile GPT-4: il futuro è già qui!OpenAI rende disponsible GPT-4 futuro 

From openai.com there was a data breach at a Mixpanel a third-party analytics provider used for API product. 

Who was impacted? 

Mixpanel Security Breach Exposes OpenAI Customer Data | Ash K posted on ...Mixpanel Security Breach 

OpenAI stated that the data breach happened within Mixpanel system and that there was not a breach of OpenAI systems, that No chat, API requests, API usage data, passwords, credentials, API keys, payment details, or government IDs were compromised. 

Here is the information that was impacted from Mixpanel API: 

  • Name that was provided on the API account  
  • Email address associated with the API account 
  • Approximate coarse location based on API user browser (city, state, country) 
  • Operating system and browser used to access the API account 
  • Referring websites 
  • Organization or User IDs associated with the API account 

Why did it happen? 

API Security Nightmare: How Hackers Exploit Vulnerabilities and What ...API Hack 

The Data breach happened because of vulnerability in Mixapnel system. 

Which cybercriminal claimed responsibility for the attack? 

Hacker Techniques: Clearing TracksHackers Technique -Clearing 

No Cybercriminal claimed responsibility for the attack. 

Here is how OpenAI mitigated loss from the cyberattack 

Disaster Management and the role of ICTs · Global VoicesDiseaster Management 

On learning about Mixpanel data breach, here are the steps OpenAI took as summarized by Copilot: 

Here’s a clear, grounded breakdown of how OpenAI mitigated loss from the Mixpanel breach, based entirely on the page you’re viewing in Edge onedrive.live.com. 

✅ How OpenAI Mitigated Loss from the Mixpanel Breach 

According to the document you have open, OpenAI took several concrete steps to limit impact after learning that Mixpanel—its third‑party analytics provider—had been compromised. These actions focused on containment, investigation, and user protection. 

🔒 1. Immediately removed Mixpanel from production services 

OpenAI cut off Mixpanel from its systems to prevent any further data exposure onedrive.live.com. 

📊 2. Reviewed all affected datasets 

They examined the analytics data that Mixpanel held to understand exactly what was exposed and to assess the scope of the breach onedrive.live.com. 

🤝 3. Worked with Mixpanel and other partners 

OpenAI collaborated with Mixpanel and additional partners to investigate the incident and understand how the breach occurred onedrive.live.com. 

📣 4. Notified impacted organizations and users 

They began directly informing affected admins, organizations, and API users about the exposure so they could take precautions onedrive.live.com. 

🔐 5. Conducted security checks across all vendors 

OpenAI initiated broader security reviews across its vendor ecosystem and raised security requirements to reduce future third‑party risk onedrive.live.com. 

🛡️ 6. Warned users about phishing risks 

Because names, emails, and user IDs were exposed, OpenAI advised users to be cautious of: 

  • Unexpected emails 
  • Suspicious links or attachments 
  • Messages requesting passwords, API keys, or verification codes (which OpenAI never asks for) onedrive.live.com. 

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