Apple sues OpenAI over alleged trade‑secret theft by ex‑Apple execs

Apple filed a federal lawsuit Friday accusing OpenAI and two former Apple executives of misappropriating Apple trade secrets, including a claim that ex‑employee Chang Liu accessed Apple’s private network after leaving and downloaded over 1,000 pages of confidential data [1]. The suit seeks damages, injunctions and an order to halt OpenAI’s use of the alleged stolen information, underscoring a growing legal risk as OpenAI prepares for its upcoming IPO [2].

Allegations against OpenAI leadership

Apple’s complaint details that Tang Tan, now OpenAI’s chief hardware officer, allegedly instructed job candidates still at Apple to bring “actual parts” and confidential design artifacts to interviews, using them to extract further proprietary information [1][2]. The filing also claims Tan coached departing Apple staff on evading security checks, effectively enabling the transfer of internal documents to OpenAI [1].

Chang Liu, who left Apple for OpenAI in January 2026, is accused of retaining an Apple‑issued laptop and exploiting a previously unknown authentication bug to continue accessing Apple’s internal network. Apple says Liu downloaded more than 1,000 pages of confidential presentations, spreadsheets and PDFs before the breach was discovered and his access was revoked [1][3]. The bug, described as a zero‑day vulnerability, has since been patched by Apple [3].

Market and competitive implications

If the allegations prove true, OpenAI could shortcut years of R&D and capital investment required to build its own consumer hardware, potentially giving it an unfair cost advantage and threatening Apple’s proprietary manufacturing processes [1][2]. The lawsuit also highlights that OpenAI has recruited over 400 former Apple engineers, including a former Vision Pro vice president, suggesting a broader talent‑poaching strategy that could amplify the competitive impact [1].

Apple’s filing arrives as the two firms’ partnership—originally announced in 2024 when ChatGPT was integrated into iOS—has cooled, and Apple is now shifting its Siri assistant to Google’s Gemini models, further distancing the companies [2]. The legal dispute adds to OpenAI’s mounting challenges ahead of its anticipated IPO, where investors will scrutinize any liabilities that could affect valuation [2].

What to watch

• Court filings and discovery – Further evidence may emerge about the extent of data transferred and any additional defendants.
• OpenAI hardware timeline – The company has not disclosed product details; any delay or change could signal the lawsuit’s impact.
• Apple‑OpenAI partnership status – Monitoring whether Apple continues integrating OpenAI technology or fully pivots to alternatives.

The case pits Apple’s vast proprietary knowledge against OpenAI’s nascent hardware ambitions, raising questions about how aggressively AI firms will source talent and technology from established hardware leaders. The outcome could set a precedent for future trade‑secret disputes in the rapidly converging AI‑hardware space.