The relationship between Apple and OpenAI has taken a chaotic, combative turn. What started as a highly publicized partnership in 2024 to integrate ChatGPT into Siri has officially dissolved into a high-stakes legal war. In a gripping 41-page complaint filed in the U.S. District Court for the Northern District of California, Apple has launched a massive trade secrets lawsuit against OpenAI.
Apple alleges that OpenAI has orchestrated a systematic, institutional campaign to steal the iPhone maker's most prized proprietary hardware secrets. The legal filings outline a narrative involving an unreturned corporate laptop, a critical software exploit, shocking interview tactics, and a casual text message that could cost billions.
The Security Breach and the "LOL" Message
At the absolute center of Apple’s multi-billion dollar lawsuit is Chang Liu, a former senior systems electrical engineer at Apple who left to join OpenAI’s expanding hardware division. According to court documents, when Liu departed the company, he neglected to return his Apple-issued MacBook.
Standard corporate offboarding typically strips a departing employee of all internal network access immediately. However, the lawsuit claims Liu discovered a previously unknown authentication bug within Apple’s network security. Weeks after he had already transitioned to his new desk at OpenAI, Liu allegedly realized his credentials still granted him complete entry into Apple's internal file servers.
Instead of reporting the vulnerability, Liu reportedly reached out to Alyssa Peng, a colleague who was still employed at Apple at the time. The text message he sent her has now become the central piece of evidence in the lawsuit:
"LOL, I found out I can access the [network storage], so funny."
Peng’s alleged response was simple: "I’m ready."
Apple claims that what followed was a deliberate, months-long data extraction process. Using the unreturned laptop and the active security vulnerability, Liu allegedly downloaded dozens of highly confidential engineering presentations, unreleased product designs, schematics, and proprietary manufacturing procedures. Peng, who has since also left Apple to join OpenAI, allegedly assisted the operation from the inside by pointing Liu toward specific high-value folders.
"Show and Tell" Interrogations
The scope of Apple’s lawsuit extends well beyond the actions of a single engineer. The complaint claims that the misappropriation of trade secrets represents a coordinated strategy directed from the highest echelons of OpenAI's hardware program.
Apple has specifically named Tang Yew Tan, Apple’s former Vice President of iPhone and Apple Watch product design, who now serves as OpenAI’s Chief Hardware Officer. Tan joined OpenAI following its high-profile acquisition of io Products, a hardware startup co-founded by legendary former Apple design chief Jony Ive.
Apple alleges that Tan leveraged his deep knowledge of Apple’s internal project codenames and organizational structure to systematically raid the company's talent pool, which now includes more than 400 former Apple employees. More egregiously, the lawsuit claims that OpenAI turned standard job interviews into corporate intelligence gathering operations.
According to the complaint, Tan and his recruitment team actively coached candidates who were still employed at Apple to bring proprietary information to their interviews. In what Apple describes as coercive "show and tell" sessions, candidates were allegedly instructed to bring physical components—including unreleased logic boards, custom batteries, and highly restricted CAD designs—straight out of Apple's headquarters to display during the interview process. The lawsuit notes that one prospective hire expressed shock afterward, admitting they had no idea employees were even allowed to remove those parts from the office premises.
Furthermore, Apple claims that OpenAI used this stolen technical data to approach global supply chain vendors. In one instance, OpenAI allegedly misled a manufacturing supplier into utilizing a proprietary, Apple-exclusive metal-finishing technique for an upcoming OpenAI device, falsely claiming they had explicitly received Apple’s permission to use it.
The Real Stakes: A Battle for the Post-Smartphone Era
In the official court filings, Apple’s legal counsel did not hold back, stating that OpenAI’s nascent hardware business rests on a foundation that is "rotten to its core by its illegal reliance on misappropriated trade secrets."
OpenAI has publicly denied the allegations. A company spokesperson issued a brief statement clarifying their position: "We have no interest in other companies' trade secrets. We remain focused on building innovative technology that empowers people everywhere."
Industry analysts suggest that the timing and sheer aggression of this lawsuit are calculated strategic moves. OpenAI has been heavily pressured to develop and launch a signature AI-powered consumer hardware device capable of moving past the traditional smartphone interface. The company is also navigating a hotly anticipated initial public offering (IPO). By launching a sweeping civil action that demands massive financial damages and a permanent injunction, Apple is attempting to implement a legal "kill switch" to freeze OpenAI’s hardware program entirely before a product can ever reach retail shelves.
With billions of dollars in market valuation, the future of consumer AI interfaces, and severe institutional reputations on the line, this case is shaping up to be one of the most significant intellectual property battles in modern tech history.
