The takeaway: California law makes OpenAI's hiring of Apple staff — more than 400 of them, by Apple's own count in the filing — untouchable: the state voids non-competes, and its courts don't accept that a hire will "inevitably" leak what's in their head. So the lawsuit Apple filed on Friday is built on something else: the forensic residue. A departed engineer allegedly messaging a colleague "LOL" about a login bug that still let him into Apple's network. Job interviews allegedly stocked with Apple batteries and logic boards for "show and tell". An exit checklist marked "Need to Know", allegedly circulating inside OpenAI to coach recruits past Apple's departure security. Apple says a preliminary-injunction motion is coming "promptly" — and that is the real threat to OpenAI's device, still trailed for late this year.

What Apple filed

The complaint — all 41 pages are public — landed Friday in federal court in San Jose. It names two former Apple employees, Chang Liu (an iPhone systems engineer who left in January) and Tang Yew Tan (24 years at Apple, latterly a VP of product design for iPhone and Apple Watch, now OpenAI's chief hardware officer), alongside OpenAI and io Products, the hardware company OpenAI absorbed for about $6.5bn. Jony Ive, io's co-founder, is not a defendant and is accused of nothing. The counts are lean: six, all trade-secret misappropriation under the federal Defend Trade Secrets Act plus two contract claims — no California trade-secret count, no tortious interference.

The opening line sets the register: "This case is about Apple's former employees stealing Apple's trade secrets for the benefit of OpenAI. Apple brings this suit to put a stop to it." And the accusation against OpenAI is institutional, not incidental — the complaint claims the company's "nascent hardware business now rests on the shakiest of foundations, rotten to its core by its illegal reliance on misappropriated trade secrets", and that under pressure to ship its first device, OpenAI "has resorted to taking unlawful shortcuts". Apple says it wrote to OpenAI raising these concerns in February. Per the complaint, "OpenAI never responded."

The alleged secrets are the unglamorous crown jewels of shipping hardware at scale: circuit and system design, power management, "proprietary metal alloys, metal-finishing techniques", battery and acoustic subsystems, testing methodologies — and supplier relationships. Notably absent: silicon design. This is a case about how you build a device, not how you design its chips.

The conduct Apple describes

The complaint's most vivid passages concern Liu. Apple alleges he kept an Apple laptop after leaving, and weeks later discovered — via what Apple calls a rare authentication bug, since fixed — that he could still reach Apple's cloud network storage. His alleged message to a then-still-employed colleague: "LOL, I found out I can access the [network storage], so funny." Her reply, per the filing: "I'm ready." Apple says he went on to download dozens of confidential hardware files, including a thousand-plus-page technical compilation, coached the colleague on avoiding Apple's security team, and moved their conversation to the LINE messaging app "to try to avoid detection". The colleague, who later joined OpenAI, is named but not sued.

Around Tan and OpenAI's recruiting, the allegations are about process. Interview candidates were allegedly told to bring Apple components — batteries, logic boards, back glass "in different colours" — as "props" for "show and tell" presentations; one candidate, per the complaint, was "surprised people have brought" parts because he "didn't know we could take those from the office". Tan allegedly used an internal Apple code name to ask a recruit "What's the plan[?]" for an unannounced Apple product. And an internal Apple managers' document marked "Need to Know", describing departure-security procedures, allegedly circulates among OpenAI recruits — described inside OpenAI, per the complaint, as "a checklist that Tang put together". All of this is Apple's account; none of it has been tested in court.

Why the case is built this way

Apple cannot sue over the exodus itself. California voids non-compete agreements, and its courts have rejected the "inevitable disclosure" doctrine — so poaching 400 employees is lawful competition, and no court will order them reassigned. What trade-secret law can reach is conduct with a forensic trail: downloads, retained hardware, documents, parts in interview rooms. That is exactly the case Apple has assembled — and it has run this play before. Its 2022 suit against the chip startup Rivos, over departing engineers taking gigabytes of design files, ended in a settlement built on forensic inspection and remediation of Rivos's systems. (Apple has also sat on the other side of the table: Masimo has spent years accusing Apple of doing precisely this with its health-sensor staff.)

OpenAI's response, in full, from spokesperson Drew Pusateri: "We have no interest in other companies' trade secrets. We remain focused on building innovative technology that empowers people everywhere." Tan, Liu and Ive had made no public comment as of Saturday morning.

What's actually at stake

The injunction Apple seeks would bar the use, possession or disclosure of its secrets — not the device launch by name. But a footnote says Apple will move for preliminary relief "promptly", and a broad order could force OpenAI to quarantine materials and prove its device design is untainted, with a product publicly trailed for late this year and Foxconn, Luxshare and Goertek — all Apple suppliers — already signed up. Discovery cuts both ways, though: Apple gets to open OpenAI's device lab and recruiting playbook; OpenAI's lawyers get an Apple that has just admitted, in a public filing, that an authentication bug left its confidential network storage reachable by a departed employee for weeks.

The strangest part is the triangle this lawsuit completes. Apple now reportedly pays Google roughly $1bn a year for the Gemini model behind the new Siri; it still partners with OpenAI on the ChatGPT integration, which the complaint explicitly walls off ("That agreement is not at issue here"); and it is suing the same company over the device that might one day compete with the iPhone. That is the clearest map yet of what Apple actually fears — not the chatbot in its phone, but the company building the thing that comes after the phone.

Disclosure: On The Wire runs on Anthropic models, an OpenAI competitor. We flag it every time.