Apple’s OpenAI Trade Secrets Suit Lays Out a Rarely Seen Playbook of Alleged Employee Poaching and Data Access

Apple has accused OpenAI and its newly acquired hardware unit io of orchestrating a coordinated effort to obtain confidential Apple information through current and former employees, suppliers and interview candidates. The 41-page complaint, filed Friday, alleges a pattern of trade secret misuse so broad that Apple says the misconduct likely extends well beyond the examples already identified.

The lawsuit matters because it goes beyond a routine employee dispute: Apple is claiming OpenAI’s hardware ambitions were accelerated by access to Apple’s private design methods, internal terminology and security weaknesses, potentially tainting a business line that could challenge the iPhone maker in future devices.

The filing, which reads like a catalog of internal misconduct, includes detailed accusations about messages, access logs, interview requests and exit procedures. OpenAI has denied the allegation publicly and says it has no interest in other companies’ secrets.

What Apple says happened

Apple’s central claim is that OpenAI benefited from a network of people with Apple knowledge who allegedly passed along sensitive information or helped others reach it. The complaint says that the conduct was not limited to isolated bad actors, but was “normalized” inside OpenAI and encouraged by leadership.

Apple’s legal theory is built on a familiar Silicon Valley conflict: employees move between companies, but they are not allowed to carry confidential material with them. In this case, Apple argues the alleged conduct crossed that line through access to internal systems, the handling of hardware prototypes and the use of Apple-specific know-how in product development.

Apple alleges that the behavior was not accidental or peripheral, but embedded enough to be described as part of OpenAI’s culture and leadership approach.

Why the lawsuit stands out

What makes the case unusual is the specificity of the claims. Rather than broad accusations alone, Apple cites messages, timing and alleged instructions that it says show intentional behavior. The filing also suggests the company uncovered only a fraction of the alleged activity before litigation began.

Apple says it first raised concerns with OpenAI in February, but received no response. That detail is important: it implies Apple tried to resolve the matter privately before turning to the courts, a common step in high-stakes corporate disputes.

The most striking allegations in the complaint

The complaint includes several episodes Apple believes illustrate how trade secrets may have been accessed, shared or reused. Some of the allegations concern former Apple engineers, while others involve OpenAI’s hardware recruiting and design development.

Messages that suggest deliberate access

Apple says one former employee, Chang Liu, sent a message after joining OpenAI saying he had discovered a way to access Apple network storage and joking about it. According to the filing, the message was sent to Yu-Ting “Alyssa” Peng, another Apple employee who later joined OpenAI and is described as a conduit between the two companies.

Apple also says Liu wrote that he still had “another computer” shortly after departing Apple, implying he intended to keep accessing confidential material from an additional device. The company claims it found the message on Peng’s Apple-issued laptop.

Apple further alleges that Liu exploited an authentication flaw to reach Apple systems using Peng’s work computer. Those claims, if proven, would raise serious questions about whether security loopholes were used to bypass protections around proprietary data.

Interview requests that included Apple parts

One of the more unusual allegations concerns interviews at io, the hardware startup founded by former Apple talent and later acquired by OpenAI in a $6.5 billion deal. Apple says the company asked candidates to bring actual Apple components to interviews for “show and tell” sessions.

According to the complaint, candidates were also asked to bring CAD files, design artifacts and prototypes. Apple says one candidate was surprised by the request and did not realize Apple parts could even be removed from the office.

The lawsuit says this request came through Tang Yew Tan, OpenAI’s chief hardware officer and a 24-year Apple veteran who previously served as vice president of product design for iPhone and Apple Watch. Apple uses that history to suggest the knowledge involved was highly specific and deeply embedded in its own product culture.

How Apple says departing workers were handled

Apple alleges that OpenAI coached incoming hires on how to navigate Apple’s exit process in ways that would limit the chances of a security sweep or a last-minute review. The company says OpenAI circulated an internal Apple document marked for limited distribution, including details on avoiding what Apple calls the “dreaded walkout.”

At Apple, a walkout can mean an employee is removed immediately after notice is given rather than working through a standard two-week period. Apple argues that a shorter or more tightly supervised exit process would reduce opportunities to copy files or retain confidential material.

The complaint also says OpenAI instructed employees to alert it immediately if Apple asked them to sign anything at their departure interviews. Apple presents that guidance as a strategy to avoid detection and preserve access to sensitive information during the exit process.

How serious are Apple’s claims about io and OpenAI hardware?

Apple says the allegations are especially troubling because they overlap with OpenAI’s growing hardware ambitions. The company is reportedly exploring consumer devices that could compete with Apple’s products, and Apple argues that any such effort should not be built using Apple’s industrial design expertise.

In the filing, Apple links io to a range of alleged misuses, including the appropriation of “secret, proprietary industrial design techniques, processes, and know-how” related to metal finishing and the use of internal Apple terminology when approaching suppliers.

Apple also says OpenAI allegedly used confidential information about batteries, power systems, components and design choices to ask targeted questions that only Apple insiders would know to pose. If true, that would suggest not merely copied ideas, but a deeper attempt to reproduce Apple’s product-development habits.

Apple argues that its hardware know-how was not just observed from the outside, but allegedly used to shape a competing effort from within the ecosystem of former Apple staff.

What “rotten to its core” means in the lawsuit

Apple’s language is unusually sharp even by the standards of corporate litigation. The complaint argues that io’s hardware business is built on a foundation “rotten to its core” because of its alleged dependence on misappropriated trade secrets.

That line does more than criticize behavior. It is a strategic effort to cast doubt on the legitimacy of any future OpenAI hardware launch and to suggest that the legal risk may attach to the product itself, not just to a few individuals.

For Apple, that framing could matter if the case proceeds into discovery, where internal messages, notes and engineering records could surface. The company is signaling that it expects more evidence to emerge and that the current allegations are only the beginning.

Why discovery could become the most important phase

Apple says the claims in the lawsuit represent only a “tip of the iceberg,” and that fuller discovery will reveal a much larger pattern. In civil litigation, discovery can expose internal emails, chats, documents and technical files that help prove whether misconduct was isolated or systematic.

That matters here because Apple is not merely asking a court to punish a few former employees. It is trying to establish that OpenAI’s behavior was coordinated enough to justify damages, injunctions or other restrictions on future hardware work.

If Apple’s version is supported by records, the case could become one of the most closely watched employee-poaching and trade secret disputes in the AI industry. If not, the complaint may still pressure OpenAI to defend its hiring and product-development practices in public.

What could discovery uncover?

Potentially, discovery could reveal:

• communications between OpenAI recruiters and Apple employees before they resigned;
• messages about what former Apple staff were allowed to bring to OpenAI or io;
• documents showing how Apple-specific design knowledge may have informed product decisions;
• records of supplier outreach that may have relied on proprietary Apple terminology;
• evidence of whether security procedures were discussed, avoided or bypassed.

Apple appears to be preparing for a lengthy legal fight in which facts will matter as much as headlines. The more documents that surface, the more the dispute may turn from a personnel controversy into a case about the boundaries of knowledge transfer in AI hardware.

How many former Apple employees work at OpenAI?

Apple says more than 400 former Apple employees are now working at OpenAI. That figure is important because it gives Apple a way to argue that the problem is not about one or two defections, but about a large and potentially ongoing flow of Apple expertise into a direct competitor.

The company does not suggest that every former employee did anything wrong. Instead, it argues that OpenAI should have been especially careful given the amount of Apple knowledge in its ranks and the value of that information to a hardware business.

What is OpenAI saying in response?

OpenAI has so far responded publicly with a short statement posted on X, rejecting the accusation that it wants trade secrets from other companies. The company says it is focused on building technology that helps people worldwide.

OpenAI says it has no interest in other companies’ trade secrets and intends to keep its attention on developing innovative products for users.

The brief response leaves open the possibility of a broader defense later in court. At this stage, OpenAI has not publicly addressed the specific allegations one by one, at least not in the same detail Apple used in its complaint.

What the case means for AI competition

This lawsuit arrives at a moment when major AI companies are expanding beyond software and into devices, assistants and consumer hardware. That shift raises the stakes around talent movement, supplier relationships and product design methods, all of which can be difficult to separate from institutional knowledge.

Apple’s suit may also signal that traditional hardware companies are growing more aggressive about protecting their design processes as AI firms begin hiring heavily from their ranks. In a market where device strategy can be a major advantage, the line between experience and misappropriation is likely to stay contested.

For OpenAI, the risk is not only legal but reputational. A claim that a future hardware line was built with help from Apple trade secrets could complicate partnerships, supplier relationships and consumer trust, even if the company ultimately prevails.

Why the timing matters

The timing is notable because OpenAI’s hardware ambitions are still emerging. That gives Apple an opportunity to challenge the groundwork early, before any consumer product reaches the market or establishes itself.

Early litigation can also shape the story around a product before launch. If a court battle becomes public and prolonged, it could influence how investors, suppliers and would-be buyers view OpenAI’s next big move.

Key allegations and timeline

The following summary captures the main events Apple describes in its complaint.

What happens next?

The next stage will likely focus on how OpenAI and io respond in court, whether they move to dismiss any of the claims, and what discovery reveals about the flow of employees, documents and product ideas between the companies.

Apple’s complaint is intentionally expansive, and that is part of its legal strategy. By casting the alleged behavior as systemic and leadership-driven, Apple is positioning the case to survive an early dismissal attempt and reach the evidence phase.

If the lawsuit proceeds, it could become a benchmark for how courts handle AI-era trade secret disputes involving hardware, supplier ecosystems and aggressive talent acquisition. It may also force the industry to rethink how much inherited knowledge is too much when a former employee joins a competitor.

For now, the dispute centers on a basic but consequential question: when does expertise stop being a career asset and start becoming someone else’s protected property? Apple is betting that, in this case, the answer will be decided in court.