Apple sues OpenAI over trade secret theft as hardware rivalry heats up

Apple has filed a federal lawsuit against OpenAI, accusing the ChatGPT maker of misappropriating some of its most sensitive proprietary information. The complaint, filed on July 10, 2026, in the U.S. District Court for the Northern District of California, alleges that OpenAI used insider knowledge from former Apple employees to accelerate its own consumer hardware ambitions.

Apple is seeking monetary damages under the Defend Trade Secrets Act, plus injunctions that would force OpenAI to stop using the allegedly stolen information and return or destroy any misappropriated materials.

What Apple is actually alleging

The lawsuit names two former Apple employees directly: Chang Liu and Tang Yew Tan. Both are accused of coordinating the theft of confidential materials, including unreleased product designs, manufacturing processes, and supply chain details.

Apple’s complaint goes further than two individuals. The filing explicitly flags that over 400 former Apple employees are now working at OpenAI, which Apple frames not as coincidence but as a deliberate recruitment strategy designed to extract institutional knowledge.

The specific allegations against Liu are striking. Apple claims he retained a company laptop after leaving and used it to download dozens of confidential files.

Apple claims that candidates interviewing at OpenAI were seen presenting actual Apple hardware parts during those interviews.

This lawsuit did not come out of nowhere. Apple sent OpenAI a cease-and-desist letter back in February 2026. OpenAI’s response was apparently inadequate enough that Apple decided the next logical step was a federal courthouse.

Why this is bigger than two fired employees

OpenAI has been publicly pivoting toward consumer hardware, an ambition that puts it on a direct collision course with one of Apple’s most profitable and strategically sensitive divisions.

What makes this case particularly pointed is the context of the two companies’ prior relationship. Apple and OpenAI were, until recently, collaborators. The integration of OpenAI’s technology into Apple devices was one of the more prominent AI partnerships in the consumer tech industry.

What investors should watch

The Defend Trade Secrets Act, the federal statute Apple is invoking, allows for both actual damages and what the law calls exemplary damages, essentially a multiplier on top of actual losses if willful misappropriation is proven. It also allows for attorney’s fees.

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