Apple Sues OpenAI Over Alleged Trade Secret Theft in High-Stakes Espionage Case
Apple has filed a 41-page lawsuit against OpenAI, accusing the AI company of orchestrating a "wide-scale corporate espionage campaign" through former Apple employees. The case, filed in 2025, targets two OpenAI employees Tang Yew Tan and Chang Liu alleging they systematically stole Apple’s trade secrets, some of which the company describes as among "the most valuable intellectual assets in all of American business."
Key Allegations Against Former Apple Employees
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Chang Liu’s Network Intrusions
- A former senior system electrical engineer at Apple, Liu joined OpenAI in January 2026 but failed to return a company-issued laptop.
- Apple claims Liu exploited a previously unknown authentication bug to access its corporate network, downloading dozens of confidential files, including unreleased product designs, engineering presentations, and technical specifications.
- Messages cited in the lawsuit show Liu boasting to a still-employed Apple colleague, Yu-Ting "Alyssa" Peng, about accessing restricted data. Peng later joined OpenAI in May 2026, allegedly with Liu’s help in preparing for her interview using proprietary Apple materials.
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Tang Yew Tan’s Recruitment Tactics
- A 25-year Apple veteran who oversaw iPhone and Apple Watch product design, Tan left in March 2024 to join io, a stealth AI hardware startup later acquired by OpenAI in July 2025.
- Apple alleges Tan interviewed current Apple employees for OpenAI, using insider knowledge such as project codenames to extract confidential details.
- He reportedly coached recruits to conceal their departure to OpenAI, even obtaining a document on Apple’s security procedures to help them evade detection.
OpenAI’s Alleged Institutional Role
Apple’s lawsuit extends beyond the two employees, accusing OpenAI of institutional misconduct, including:
- Supplier Poaching: OpenAI allegedly contacted Apple’s suppliers, requesting proprietary techniques under false pretenses.
- Systemic Espionage: Apple claims the behavior of Tan and Liu reflects a "coordinated pattern of misconduct" at OpenAI, with evidence suggesting leadership enabled or ignored the theft.
- Ignored Warnings: Apple says it emailed OpenAI in February 2025 about concerns over trade secret leaks but received no response.
Broader Context: A Fractured Partnership
The lawsuit follows the deterioration of Apple and OpenAI’s collaboration, which began in late 2024 when Apple integrated ChatGPT into Siri. By January 2025, Apple shifted its AI partnership to Google Gemini, further straining relations. OpenAI, meanwhile, has been developing an unreleased AI-powered device rumored to compete with smartphones which CEO Sam Altman called "the coolest piece the world will have ever seen" in May 2025.
Legal and Industry Implications
Apple is represented by Weil, Gotshal & Manges, a top law firm with experience in high-stakes corporate litigation. The case arrives as OpenAI faces multiple legal challenges, including:
- A dismissed lawsuit from Elon Musk (May 2025).
- A Florida state lawsuit over alleged risks to children (June 2025).
- An escalated copyright case with The New York Times (filed days before Apple’s lawsuit).
Apple warns its filing is "the tip of the iceberg," suggesting discovery could reveal far more extensive misappropriation. The outcome may set precedents for AI competition, corporate espionage, and trade secret protection in the tech industry.
Source: https://fortune.com/2026/07/13/apple-lawsuit-against-openai-stolen-trade-secrets-wildest-claims/
OpenAI cybersecurity rating report: https://www.rankiteo.com/company/openai
Apple cybersecurity rating report: https://www.rankiteo.com/company/apple
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"linkid": "openai, apple",
"type": "Cyber Attack",
"date": "7/2026",
"severity": "100",
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"explanation": "Attack threatening the organization's existence"{'affected_entities': [{'industry': 'Technology, Consumer Electronics',
'location': 'Cupertino, California, USA',
'name': 'Apple Inc.',
'size': 'Large Enterprise',
'type': 'Corporation'}],
'attack_vector': 'Insider Threat, Exploitation of Authentication Bug, Social '
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'data_breach': {'data_exfiltration': 'Yes',
'sensitivity_of_data': "High (among 'the most valuable "
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'date_publicly_disclosed': '2025',
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'investigation_status': 'Ongoing',
'motivation': 'Competitive Advantage, Intellectual Property Theft, Corporate '
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'references': [{'source': 'Apple Lawsuit Filing'}],
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'threat_actor': ['Tang Yew Tan',
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'title': 'Apple Sues OpenAI Over Alleged Trade Secret Theft in High-Stakes '
'Espionage Case',
'type': 'Corporate Espionage, Trade Secret Theft',
'vulnerability_exploited': 'Unknown authentication bug, Insider knowledge of '
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