Apple Sues OpenAI, Alleging Mass Poaching Was a “Coordinated Heist”

This wasn't just hiring. It was a heist. That’s the core allegation in a bombshell lawsuit Apple dropped on OpenAI in federal court on July 11, 2026. The move transforms the fierce AI talent war into an open battle over corporate espionage. The complaint, filed in the Northern District of California, accuses OpenAI of a "coordinated campaign" to steal trade secrets by poaching more than 400 Apple employees. This wasn't ordinary recruiting, Apple insists. It was a systematic raid on the company's most sensitive divisions to bleed them of proprietary tech.

The lawsuit alleges OpenAI’s entire hardware business is “rotten to its core by its illegal reliance on misappropriated trade secrets.” The filing gets specific, naming Tang Tan, OpenAI's Chief Hardware Officer and a former Apple VP of product design, and Chang Liu, a former senior electrical engineer, as central players. Apple claims this was a top-down scheme. A shortcut. A way to bypass the grueling and expensive work of actual innovation.

What a difference two years makes. This is the same Apple and OpenAI that just recently announced a landmark partnership to bake ChatGPT into Apple's operating systems. Now they’re adversaries in a high-stakes legal drama that could rewrite the rules of engagement in Silicon Valley.

The Heart of the Accusation: A Systematic Drain of Core Talent

The lawsuit paints a damning picture. It claims OpenAI didn't just hire Apple employees; it actively coached them on how to bring confidential information with them. The complaint alleges that departing employees were told how to sidestep Apple's security during their exit—for example, by not naming OpenAI as their new employer to keep their access to internal systems active for longer. According to the filing, Tan, leveraging his insider knowledge of Apple's procedures, even shared an internal "Need to Know" document on security protocols with his new team at OpenAI.

But the allegations get more brazen.

Apple describes “show and tell” sessions during job interviews. Tan allegedly told Apple employees interviewing at OpenAI to bring physical hardware with them. We're talking proprietary batteries, logic boards, and system-in-package (SIP) components. One particularly explosive claim accuses OpenAI of using confidential information to fool an Apple supplier into applying a “specific trade secret metal-finishing technique” for an OpenAI device—by implying Apple had signed off on it.

The case of Chang Liu is presented as a smoking gun. Apple says it stumbled onto the scheme only after Liu failed to return a company laptop. What did they find? An investigation allegedly revealed he had used a previously unknown bug to access and download dozens of confidential files—engineering presentations, data on unreleased products—after he had already started his new job at OpenAI. One text from Liu to another Apple employee, cited in the lawsuit, says it all: "LOL, I found out I can access the [network storage], so funny."

Beyond Recruitment: A Battle for the Future of AI Hardware

This legal fight is about so much more than a few hundred engineers. It’s a direct conflict over the very future of artificial intelligence. For years, Apple has staked its entire brand on privacy, a strategy that depends completely on powerful on-device processing. Keeping user data on the iPhone or Mac, not in the cloud, is the whole point. And that entire ecosystem is powered by its world-class silicon engineering teams. The very teams Apple claims OpenAI plundered.

OpenAI, born in the cloud, has made its hardware ambitions brutally clear. The company has been on a hiring tear and in early 2026 launched a massive request for proposals to build a U.S.-based hardware manufacturing ecosystem for everything from gadgets to data centers. CEO Sam Altman has reportedly tried to raise trillions for an AI chip venture. This lawsuit suggests Apple believes OpenAI is trying to build that future with its stolen blueprints. As detailed in our ongoing coverage, the filing puts OpenAI's hardware goals squarely in the crosshairs, Apple Sues OpenAI, Alleging Hardware Division Is 'Rotten to the Core'.

The conflict simply underscores the brutal competition in the semiconductor space. As the race to build smarter, more efficient AI processors intensifies, the knowledge behind designing those chips has become one of the most valuable assets on the planet, fueling a vicious AI chip war.

What Does the Law Say About Poaching?

Hiring from a competitor is standard practice in Silicon Valley. It’s the valley's lifeblood. The law, however, draws a bright red line between aggressive recruiting and illegal trade secret theft. Under the federal Defend Trade Secrets Act (DTSA), a company can sue if its confidential information gets misappropriated. Apple's case will have to prove not just that its old employees work at OpenAI, but that OpenAI deliberately induced them to bring—and use—proprietary Apple information.

Proving this is notoriously hard. Courts have to separate an employee's general skills from specific, protected trade secrets. Still, the details in Apple's complaint—from coaching people on exit strategies to demanding physical hardware in interviews—suggest its lawyers at Weil, Gotshal & Manges LLP think they have the goods to clear that high bar.

We’ve seen this movie before. The legal war between Waymo and Uber over self-driving car tech, which also hinged on a star engineer moving between companies with allegedly stolen files, is a recent precedent. That case settled, but not before exposing the cutthroat tactics common in these tech races. Because California law makes non-compete agreements almost impossible to enforce, trade secret law is, as one legal expert noted on LinkedIn, “the only legal perimeter left around institutional knowledge.” Apple's lawyers seem to have built their case right inside that perimeter.

Apple is demanding a jury trial, damages, and a court order to stop OpenAI from using any of the allegedly stolen information. OpenAI has denied everything. “We have no interest in other companies' trade secrets,” a spokesperson stated. The lawsuit now kicks off a discovery process that could lay bare the inner workings of both titans, revealing just how far they're willing to go to win the AI revolution.