rotten to its core by its illegal reliance on misappropriated trade secrets
In the corridors where innovation and competition converge, Apple has filed a federal lawsuit against OpenAI in California, alleging that two former engineers — now holding senior roles at the AI company — carried proprietary hardware secrets across the threshold between rivals. The case frames what Silicon Valley often calls 'talent mobility' as something darker: a coordinated institutional scheme to shortcut years of research through misappropriation. At its core, this dispute asks an enduring question about the knowledge workers carry in their hands, on their devices, and in their minds — and where the line falls between what a person knows and what belongs to the company that shaped them.
- Apple accuses OpenAI's Chief Hardware Officer Tang Tan and engineer Chang Liu of systematically extracting confidential hardware information after leaving Apple — not as rogue actors, but as part of what Apple calls an organizational pattern of theft.
- The alleged methods are striking in their specificity: Liu reportedly retained an Apple-issued device to download sensitive files, while Tan allegedly instructed interview candidates still employed at Apple to physically bring proprietary parts to OpenAI meetings.
- Apple says it flagged these concerns directly to OpenAI in February and received no response, a silence the lawsuit now frames as institutional complicity rather than oversight.
- OpenAI, which has kept its hardware ambitions deliberately vague, now faces the prospect of defending whether its nascent hardware division was built on legitimately developed knowledge or on a foundation Apple calls 'rotten to its core.'
- The outcome could ripple far beyond these two companies, potentially forcing Silicon Valley to rethink how it manages the departure of engineers who carry some of the industry's most sensitive institutional knowledge.
Apple has escalated its tensions with OpenAI into federal court in California, filing a lawsuit that accuses the ChatGPT maker of orchestrating the theft of proprietary hardware secrets through two former employees. The case centers on Tang Tan, now OpenAI's Chief Hardware Officer, who spent years at Apple contributing to the iPhone, Apple Watch, and iPod, and Chang Liu, an electrical engineer who joined OpenAI earlier this year. Apple's filing does not treat their alleged actions as individual misconduct — it describes them as part of a deliberate, coordinated scheme that reflects institutional policy at OpenAI itself.
The specific allegations are pointed. Apple's internal investigation found that Liu downloaded sensitive hardware files using an Apple-issued device he retained after his departure. More unusually, Apple claims Tan instructed job candidates still working at Apple to bring physical parts from Apple products to their OpenAI interviews — suggesting the effort to acquire proprietary information extended to tangible hardware components, not just digital files.
Apple says it brought these concerns to OpenAI in February and received no response. The lawsuit describes OpenAI's hardware ambitions as resting on foundations 'rotten to its core by its illegal reliance on misappropriated trade secrets.' OpenAI has not publicly commented on the suit and has said little publicly about its hardware plans beyond noting it is exploring new ways for users to interact with AI.
The case now forces OpenAI to account for how its hardware development proceeded — and whether it knowingly benefited from stolen information. More broadly, the lawsuit puts pressure on an assumption long embedded in Silicon Valley culture: that the knowledge engineers carry between employers is simply part of how the industry moves forward. If Apple's allegations are sustained, the implications for how tech companies manage departures and protect sensitive innovations could extend well beyond this particular dispute.
Apple has taken OpenAI to federal court in California, accusing the ChatGPT maker of orchestrating the theft of proprietary hardware secrets through two former employees now working at the AI company. The lawsuit represents a sharp escalation in what has become an increasingly tense relationship between two of Silicon Valley's most influential firms, and it centers on allegations of systematic corporate espionage aimed at jumpstarting OpenAI's nascent hardware division.
At the heart of the case are Tang Tan and Chang Liu, both former Apple engineers now employed by OpenAI. Tan, who spent years at Apple helping design the iPhone, Apple Watch, and iPod, now serves as OpenAI's Chief Hardware Officer. Liu, an electrical engineer, joined OpenAI earlier this year. Apple's legal filing accuses both men of improperly accessing confidential company information after their departures and claims their actions were part of a deliberate, coordinated scheme that extended beyond individual misconduct to institutional policy at OpenAI itself. The company describes the pattern as one of theft operating at an organizational level, not merely the work of rogue employees.
The specifics alleged in the lawsuit paint a picture of systematic information gathering. According to Apple's internal investigation, Liu downloaded sensitive hardware files using an Apple-issued device that he kept after leaving the company. More strikingly, Apple alleges that Tan instructed job candidates who were still employed at Apple to bring actual physical parts from Apple products to their interviews at OpenAI—a claim that suggests the effort to acquire proprietary information extended beyond digital files to tangible hardware components. These allegations form what Apple describes as a clear pattern of theft involving confidential hardware-related materials.
Apple says it first raised these concerns with OpenAI in February, after discovering the alleged misconduct through its own investigation. The company claims OpenAI did not respond to those warnings. An Apple spokesperson emphasized the company's commitment to defending its intellectual property, stating that Apple would take all appropriate steps to protect the work of its teams. The lawsuit itself uses pointed language, describing OpenAI's hardware business as resting on foundations that are "rotten to its core by its illegal reliance on misappropriated trade secrets."
OpenAI has not yet publicly responded to the allegations or commented on the lawsuit. The company has been relatively quiet about its hardware ambitions, saying only that it is developing new ways for users to interact with artificial intelligence beyond conventional products and interfaces. Apple's legal action now forces the company into a position where it must either defend itself against charges of knowingly benefiting from stolen information or explain how its hardware development proceeded independently of any confidential Apple materials.
The case raises fundamental questions about the movement of talent between competing technology companies and the boundaries of what constitutes legitimate business practice versus corporate espionage. If Apple's allegations hold up in court, the implications could extend beyond these two companies, potentially reshaping how Silicon Valley firms manage employee departures and protect their most sensitive innovations. For now, OpenAI's hardware ambitions face legal jeopardy, and the outcome of this lawsuit will likely influence how aggressively other tech companies pursue similar talent acquisitions from their rivals.
Notable Quotes
This case is about Apple's former employees stealing Apple's trade secrets for the benefit of OpenAI— Apple's lawsuit filing
We will always defend our teams' hard work and innovations, and we are taking all appropriate steps to do so— Apple spokesperson
The Hearth Conversation Another angle on the story
Why would OpenAI need to steal Apple's hardware secrets when it has access to the world's best AI talent and billions in funding?
Because hardware is different from software. You can hire brilliant AI researchers anywhere, but designing consumer hardware at scale—the manufacturing, the thermal management, the integration—that's knowledge Apple has spent decades perfecting. OpenAI needed shortcuts.
But couldn't they just hire hardware people and start from scratch?
They could, and they probably did. The question is whether they also took a shortcut by using information they shouldn't have. That's what Apple is alleging—that they did both.
What's the significance of Tan instructing candidates to bring actual parts to interviews?
It suggests this wasn't passive—someone at OpenAI wasn't just accepting information that walked in the door. They were actively requesting it. That's the difference between a leak and a coordinated effort.
Why did Apple wait until February to contact OpenAI if the investigation uncovered a pattern?
We don't know. Maybe the investigation took time. Maybe they hoped a quiet conversation would resolve it. When it didn't, they went to court.
What happens if OpenAI wins?
Then the precedent is set that you can hire away key people and whatever they remember or bring with them is fair game. If Apple wins, it's much harder to move between companies in sensitive roles.