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On Friday 10 July 2026 Apple sued OpenAI in federal court and accused the company it once welcomed into the iPhone of stealing the secrets behind its next generation of hardware. The man at the centre of the complaint spent 24 years inside Apple before he left to build the device meant to replace the very products he once shipped.
Let's get into it.
TODAY'S DEEP DIVE
Apple Sues OpenAI and Two Former Employees Over Alleged Theft of Unreleased Hardware Secrets
The lawsuit lands on two companies that stood on the same stage two years ago. In 2024 Apple folded ChatGPT into the iPhone operating system, and Sam Altman travelled to Cupertino to mark the announcement in person.
That partnership cooled once OpenAI decided to build hardware of its own, and in January 2026 Apple moved the brains of its updated Siri assistant onto Google's Gemini models rather than OpenAI's, with the new version due later in 2026.
The turn is sharp enough to be worth noting, because in May 2026 OpenAI was the side weighing a lawsuit against Apple over a ChatGPT integration it felt Apple had buried inside Siri. Now the company that once put OpenAI inside its most important product is the one filing first, accusing it in the US District Court for the Northern District of California of theft that runs through every level of its organisation.
The Man At The Centre
Most of the complaint runs through Tang Tan, who spent 24 years at Apple and left as vice president of product design for the iPhone and Apple Watch. He is now OpenAI's chief hardware officer, and he co-founded io Products, the design startup that OpenAI bought in May 2025 for roughly 6.4 billion dollars in an all stock deal that already counted a 23 percent OpenAI stake.
Apple names Tan as a defendant and casts him as the person who set the tone, arguing that the theft it describes was not the work of a few rogue engineers but a practice normalised and modelled by leadership. That framing matters, because it turns a handful of individual acts into a claim about how the company operates.
The Show And Tell Sessions
The tactics Apple lays out are unusually specific. It says Tan used Apple's confidential project codenames while interviewing candidates who still worked at Apple, leaning on the names to draw out more detail than an outsider could know to ask for. It says he told those candidates to bring actual parts to their interviews, hardware such as batteries and logic boards, for show and tell sessions where his OpenAI team could handle them and press for more.
Apple also claims he circulated one of its internal offboarding documents, the sort that tells departing staff what they may not take, and used it to coach new hires on how to slip past Apple's exit security checks rather than to comply with them.
The Laptop That Went Home
The second defendant is Chang Liu, a senior systems electrical engineer who spent eight years at Apple before joining OpenAI in 2026. Apple says he kept his work issued laptop after he left, then found a bug that let him reach Apple's network storage from outside the company, and used that access to download dozens of confidential files covering unannounced technologies, technical specifications and engineering presentations.
The filing quotes a message in which Liu treats the open door as a joke rather than a fault to report. Apple further alleges he advised at least one Apple colleague applying to OpenAI on what to study before the interview, which is how a single breach starts to look like a pipeline.
What Apple Is Asking For
Apple sent OpenAI a letter in February 2026 raising these concerns and says it received no response, which is part of why the dispute is now in court rather than a conference room.
Sam Altman, CEO of Open with Tim Cook, former CEO of Apple
The company is asking a judge to bar OpenAI from using or disclosing its trade secrets, to order the return of any confidential material, and to preserve the evidence while the case proceeds. It is also seeking monetary damages and a declaration that the conduct was unlawful.
In the filing Apple describes what it has found as the tip of the iceberg and argues that OpenAI's young hardware business is rotten at its core, built on the shakiest of foundations.
Why The Timing Matters
The suit arrives at a delicate moment for both sides. OpenAI is preparing for what is expected to be a historic public offering, and a trade secrets fight with a 4.6 trillion dollar rival is the kind of legal cloud that follows a company into its roadshow.
It comes two months after OpenAI won a separate trial brought by Elon Musk, so the company moves from one courtroom win into a fresh accusation without much of a pause. Apple has its own handover underway, with Tim Cook passing the chief executive role to John Ternus in September 2026.
And Jony Ive, the designer behind both Apple's most famous products and OpenAI's hardware ambition, is not named in the complaint despite having co-founded the company at its centre.
The Bottom Line
Apple is not fighting over a slogan or a patent here, it is fighting over the blueprint for the products meant to succeed the iPhone, and it has named the OpenAI executive who used to build that iPhone as the man who carried its secrets out the door.
OpenAI says it has no interest in anyone else's trade secrets and remains focused on its own work, and none of Apple's claims have been tested in court yet. But the specifics in this filing, the parts carried into interviews and the laptop that kept phoning home, are the kind of detail that is hard to wave away, and they will shadow OpenAI's hardware launch and its public offering until a judge sorts out what actually happened.
AI PROMPT OF THE DAY
Category: Risk Assessment
"Act as a corporate security advisor. My company works in [industry] and I am worried about confidential information leaving with employees who depart for competitors. Walk me through the exit process step by step, list the specific checks that catch someone taking hardware, documents or system access on their way out, flag the three points where most leaks actually happen, and give me a short offboarding checklist I can hand to [HR or IT] to run on every departure."
ONE LAST THING
The uncomfortable lesson in this case has little to do with OpenAI or Apple in particular. Every company that builds something valuable is one careless offboarding away from watching its work walk out the door, and the defences that matter are the dull ones, the laptop returned, the access revoked, the exit check that someone actually runs. The most damaging breach in this whole filing was carried out with a work laptop nobody remembered to collect.
Hit reply, I read every response.
See you tomorrow.
— Vivek
P.S. Know a founder or engineering leader who should think harder about what walks out the door when someone quits? Forward this to them. They can subscribe at https://savvymonk.beehiiv.com/