ChatGPT, the popular AI model developed by OpenAI and now owned by Microsoft, has reportedly been targeted in a cybersecurity breach. However, the source of the hack is not within OpenAI itself, but rather one of its third-party partners—Mixpanel, a data analytics company that provides analytics services to businesses, including OpenAI. The breach has reportedly resulted in the leak of certain data tied to OpenAI’s API users, but it is important to note that this data was not classified as “sensitive” as previously suggested by some media reports.
What Was Leaked?
The leaked data appears to have been limited to user accounts linked specifically to OpenAI’s API products, which are used by businesses and developers to integrate ChatGPT’s capabilities into their own applications. According to OpenAI, the breach did not involve highly sensitive information such as chat logs, passwords, API keys, payment details, or government-issued identification numbers—contrary to initial reports that suggested otherwise.
This clarification is important, as there were widespread concerns in the media about the exposure of personal or private data. However, OpenAI has reassured users that no such sensitive information was compromised in the hack.
OpenAI’s Response to the Breach
Once the breach was identified, OpenAI acted quickly to mitigate potential risks. The company’s incident response team immediately severed its relationship with Mixpanel by discontinuing the use of their analytics s
Source: https://www.cybersecurity-insiders.com/chatgpt-of-openai-hacked-and-data-leaked/
TPRM report: https://www.rankiteo.com/company/broadrangeai
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"type": "Breach",
"date": "2025-11-27T00:00:00.000Z",
"severity": "50",
"impact": "",
"explanation": "Attack limited on finance or reputation: - Loss of bank statements, self-assessment details, and other people's National Insurance numbers - Attack on credit cards - Attack with no impact but news about this attack in the press - Attack on which customers experience fraudulent activity"{'incident': {'affected_entities': [{'customers_affected': 'Businesses and '
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'description': 'OpenAI, the developer of ChatGPT (now owned by '
'Microsoft), experienced a data breach '
'originating from a third-party partner, Mixpanel '
'(a data analytics company). The breach resulted '
'in the leak of non-sensitive data tied to '
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'developer accounts integrating ChatGPT '
'capabilities. No highly sensitive information '
'(e.g., chat logs, passwords, API keys, payment '
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'contrary to initial media reports.',
'impact': {'brand_reputation_impact': 'Potential reputational '
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'customer_complaints': None,
'data_compromised': ['User account data linked to '
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'downtime': None,
'financial_loss': None,
'identity_theft_risk': 'None (no sensitive PII or '
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'legal_liabilities': None,
'operational_impact': None,
'payment_information_risk': 'None',
'revenue_loss': None,
'systems_affected': None},
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'data_sold_on_dark_web': None,
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'post_incident_analysis': {'corrective_actions': None,
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'ransomware': {'data_encryption': None,
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'ransom_paid': None,
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'references': [{'date_accessed': None,
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'regulatory_compliance': {'fines_imposed': None,
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'regulatory_notifications': None},
'response': {'adaptive_behavioral_waf': None,
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'enhanced_monitoring': None,
'incident_response_plan_activated': 'Yes',
'law_enforcement_notified': None,
'network_segmentation': None,
'on_demand_scrubbing_services': None,
'recovery_measures': None,
'remediation_measures': None,
'third_party_assistance': None},
'title': 'Cybersecurity Breach Affecting OpenAI via Third-Party '
'Partner Mixpanel',
'type': 'Data Breach (Third-Party)'}}