OpenAI has turned the trade-secret fight with Apple around. In a filing entered on the public docket on October 14, 2026, the OpenAI side of Apple Inc. v. Liu alleges that a former OpenAI employee who went back to Apple sent more than 100 highly confidential files about an unreleased OpenAI device to personal accounts, and then briefed Apple leadership. The details below come from Unite.AI's reading of the docket and Reuters-based coverage; the filing is an allegation, Apple denies it, and no court has ruled on it.
This is the latest turn in a case we have followed since the start: Apple sued OpenAI, Tang Tan and Chang Liu in July, and a judge ordered OpenAI to hand over hiring records in expedited discovery. Now the claims run in both directions.
Claimed vs verified
| Point | What the filing or reporting says | Status |
|---|---|---|
| 100+ files sent to personal accounts | OpenAI's forensic investigation, per the supplement | Allegation, not tested in court |
| Contents | Device images, engineering and manufacturing data, supplier information, cosmetic-finish standards, coating and sealing reports | Alleged description |
| Timing | Some files sent just after midnight in Singapore on June 2, 2026, the employee's last day at OpenAI | Alleged |
| Presentation to Apple leadership | OpenAI says it "understands" a presentation went to senior leaders including Apple's vice president of operations in Asia, months ago | OpenAI's understanding, not confirmed |
| Apple used the information | OpenAI cites Apple's October 2026 Home Collection announcement and HomeView coverage in a footnote | Inference, not evidence |
| Apple's position | Policies prevent use of prior employers' confidential information; no evidence of the allegations found | Apple denial |
What the supplement actually says
The OpenAI Foundation, OpenAI Group PBC, io Products LLC and Tang Yew Tan filed the document as a supplement to the parties' October 1 joint case management statement in the Northern District of California. It was meant to alert the court to new facts relevant to scheduling at the October 14 case management conference.
According to Unite.AI, the filing says a recent and ongoing forensic investigation arising from the lawsuit found that the employee, who joined OpenAI from Apple, worked at OpenAI for six months and then returned to Apple. The files are described as including detailed images of the unreleased device or devices, confidential engineering and manufacturing data, supplier information, project files, standards for cosmetic finishes and reports on the coating and sealing of hardware components.
OpenAI says it is "very concerned that its trade secret and confidential information is now circulating inside Apple," and that Apple, asked for assurances that it neither holds nor has used OpenAI's confidential information, had not provided them at the time of the filing. The defendants asked for a case management approach that lets them investigate and, if necessary, file and pursue counterclaims.
Apple's response
Apple told reporters it has policies and procedures to keep new hires from using confidential information from former employers and that it has found no evidence supporting OpenAI's claims. That is a denial of the allegation, not an explanation of what the investigation will show.
The footnote about HomeView
One footnote deserves caution. OpenAI says Apple, "armed with that information," is making a new push into AI-enabled products, and points to Apple's own October 2026 Home Collection announcement and press coverage of a product called HomeView. We covered that device in our Apple HomeView and Siri AI in the EU post. Apple has been working on smart home products for years, and a product announcement does not show that anyone used another company's secrets. Treat the footnote as OpenAI's argument about motive and timing.
The case so far
- July 10, 2026: Apple files a complaint alleging trade-secret misappropriation and breach of contract against Chang Liu, Tang Tan, the OpenAI entities and io Products LLC. Apple brings four Defend Trade Secrets Act claims plus contract claims against Liu and Tan.
- August 3 to 5: Apple moves for a preliminary injunction and expedited discovery; OpenAI says it does not "have, nor want, any of their trade secrets," and moves to dismiss.
- September 24: the parties exchange initial disclosures.
- October 13: Judge Edward J. Davila grants the expedited discovery motion in part, denies it in part and defers ruling in part, and vacates the motion hearing.
- October 14: OpenAI files the supplement; the case management conference is held.
Both sides want a jury trial and expect 10 to 15 trial days. The defendants propose being ready by June 1, 2027, or by October 2027 on a longer schedule.
How the October 13 ruling sets the stage
The day before the supplement, TechCrunch reported that Judge Davila let Apple fast-track discovery of OpenAI's interview materials for former Apple staff, approved depositions of Chang Liu, Alyssa Peng and Tang Tan, and denied broader requests for OpenAI hardware research for now. Read together, the two events show a case in which discovery is about to start flowing toward Apple, and OpenAI is positioning itself to ask for discovery in return. A counterclaim based on a forensic finding is one way to make that request look less like retaliation: it ties the ask to a specific, documented event rather than to a general suspicion.
That is a litigation reading, not a fact. OpenAI's own words, that it needs a process to "investigate the conduct" and "if necessary" pursue counterclaims, suggest the investigation is not finished. Statements like "recent and ongoing" mean the file count and the description of the files could change.
Questions people are asking
Is the employee a defendant? The sources we reviewed do not say. The named individual defendants in the original suit are Chang Liu and Tang Tan, and the filing describes someone who worked at OpenAI for six months, so we do not assume an identity.
Is sending files to a personal account illegal? It can breach an employer's policy and, depending on the files and the agreements involved, can support trade-secret or contract claims. Whether it did here is exactly what a court would have to decide. Forwarding work documents to personal email is common enough that employers often have rules about it.
Could OpenAI's own conduct be questioned? Possibly. Apple's claims center on OpenAI's recruiting of Apple engineers, and OpenAI has said its products were developed independently with safeguards to keep other companies' information out. New facts about a departing OpenAI employee do not resolve what Apple alleges about earlier hires.
Does it affect the device launch? Nothing in the sources links the filing to a delay. A court fight over trade secrets can still bring discovery burdens and, in extreme cases, injunctions, though Apple's injunction request has so far not produced one in the reporting we found.
Why file now? The supplement says it was intended to inform scheduling at the October 14 conference. Raising counterclaims before the schedule is set is cheaper than seeking leave later.
Why this matters for the AI hardware race
OpenAI's first consumer device is one of the most anticipated products in AI, and the lawsuit is a window into how fiercely the two companies are competing for hardware talent and know-how. The dispute reportedly involves about 400 hires from Apple, according to filings summarized earlier in the case. For readers tracking the device itself, our coverage of OpenAI hardware sits alongside the security incident we reported when an OpenAI employee was arrested over a hidden recording device: in a few weeks, OpenAI has been on both sides of leak and confidentiality disputes.
Trade-secret cases tend to move slowly and often settle, and counterclaims change leverage. If OpenAI is allowed to pursue them, discovery could reach Apple's internal communications, which is likely why the request is being made now.
What to watch
- Whether Judge Davila allows a counterclaim process and on what schedule.
- Whether Apple files a response that addresses the specific allegations rather than the general denial.
- Whether the forensic findings are made public through exhibits.
- Whether the individual is named in later filings.
- Whether the expedited discovery order, partly granted on October 13, produces documents on either side.
What companies can learn
This is a reminder that departure controls are a security problem. Personal-account forwarding, cloud sync of work documents and last-day bulk transfers are the usual patterns forensic reviews look for, and both companies have argued about exactly those practices. OpenAI earlier blamed Apple's policy of letting employees use personal iCloud accounts for work documents. Teams building with AI agents face a similar issue: an agent with broad file access can move data as quickly as a person can. A control layer that blocks risky actions before they happen, such as AgentBeam from the explainx.ai team, is worth considering for agent workflows.
Bottom line
The verified facts are procedural: a filing was made, a conference was held, and Apple denies the claim. The substance, 100+ files, a presentation and use at Apple, is OpenAI's allegation based on its own investigation. Expect Apple's answer and any court ruling on counterclaims to decide how far this goes.
Reflects public reporting and docket summaries as of October 14, 2026.