Apple Fires Back at OpenAI's Bid to Toss Trade Secrets Suit - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Fires Back at OpenAI's Bid to Toss Trade Secrets Suit

Apple has urged a federal judge to reject OpenAI's recent motion to dismiss its trade secrets lawsuit, arguing in a new filing that the company's defense depends on "distortion, speculation, and improper extrinsic evidence."

OpenAI vs Apple Feature scaled
Apple sued OpenAI in July, accusing the company of running a scheme to pull confidential product information out of former Apple employees who became job candidates and new hires. Apple's suit claims more than 400 former Apple employees now work at OpenAI.

Earlier this month, OpenAI's motion argued that Apple in its filing never properly identified what information actually counts as a protectable trade secret. The company said it has no interest in Apple's confidential material because it is "building something entirely new and different from anything at Apple."

But in a 32-page opposition brief filed Wednesday, seen by MacRumors, Apple restates several of its main allegations against former engineer Chang Liu and OpenAI hardware chief Tan Yew Tan, and argues that OpenAI's defenses are fact disputes that should be resolved after discovery, rather than used for dismissal.

Apple says Liu exploited a "rare authentication bug" to access Apple's network storage weeks after joining OpenAI, and downloaded dozens of confidential engineering files, including a presentation on how to manufacture and test main logic boards.

As for Tan, Apple repeats its allegation that he used internal project codenames to question interview candidates about unreleased Apple products. The company also claims that Tan asked one Apple employee to bring components she had worked on to OpenAI for a "show and tell" session. The components are said to have included batteries, system-on-chips (SoCs), logic boards, and shields.

Apple also counters OpenAI's argument for dismissal that Apple has not identified a protectable trade secret that the company allegedly stole. Citing the Ninth Circuit's 2025 Quintara decision, Apple contends that this information does not need to be disclosed yet because it is a "fact dispute" that should be resolved later when evidence has been presented, either at summary judgement or trial.

Apple also points out that forcing it to describe its trade secrets in specific detail in a public filing would amount to publishing the very secrets it's trying to protect.

The rest of the brief argues OpenAI is relying on material the judge isn't allowed to consider at this stage. OpenAI included text messages, a website listing Apple's codenames, and a copy of its interview guide to support its motion. Apple argues that none of it belongs there because a dismiss is based on the complaint alone.

Apple also uses one of OpenAI's own lines against it. OpenAI's motion called its innocent explanation for Tan's conduct "at least equally plausible" as Apple's. Indeed, Apple argues that under Ninth Circuit precedent, the case moves forward rather than being thrown out where two plausible explanations compete.

Judge Edward J. Davila is set to hear the company's arguments on October 1.

Popular Stories

OpenAI vs Apple Feature

Apple Says Former Engineer Used Stolen Trade Secrets at OpenAI, Taught AI Agent to Run Them

Monday August 31, 2026 1:22 pm PDT by
Apple today submitted new evidence in its lawsuit against OpenAI, with the hope that the new information will persuade the judge to grant an expedited discovery process. Apple filed a theft of trade secrets lawsuit against OpenAI employees Chang Liu and Tang Tan in July, accusing them of using multiple methods to steal data from Apple. Liu kept an Apple-issued MacBook after he left for...
iphone 16 teal

Apple's Siri Settlement: Here's When iPhone Owners Can Submit Claims

Friday August 28, 2026 11:01 am PDT by
In May, Apple agreed to pay $250 million to settle a U.S. class action lawsuit over Siri AI's delayed launch, and eligible iPhone users could receive up to a $95 payout. Today, a new court document revealed when customers will likely be able to begin submitting claims. If the dates proposed by Apple's lawyers are approved by the judge, eligible customers would begin to be notified about the...
OpenAI vs Apple Feature

Dispute With OpenAI Said to Be a 'Mess of Apple's Own Making'

Tuesday September 1, 2026 5:06 am PDT by
OpenAI yesterday denied Apple's allegations of trade secret theft, telling a federal court that Apple failed to show any confidential information was actually stolen by its former employees, according to Reuters. In a new filing submitted to the U.S. District Court in San Jose, California, OpenAI argued that the dispute is "a mess of Apple's own making." The filing is a direct response to...

Top Rated Comments

kegan forbes Avatar
4 weeks ago

Ladies and gentlemen of the Court, Apple says OpenAI stole its trade secrets.

Now think about this:

Siri lives on the iPhone.

OpenAI does not make the iPhone.

Apple makes the iPhone.

Yet somehow, Siri still cannot reliably turn on the kitchen lights.

That does not make sense.

Why would a company capable of stealing Apple’s most valuable AI secrets steal the secrets that produced Siri?

It does not make sense.

Apple says its former employees went to OpenAI.

But Siri stayed at Apple.

And Siri is still Siri.

That does not make sense.

If Apple’s trade secrets were stolen, why didn’t OpenAI steal Siri?

And if Siri is the trade secret—

why would anyone steal it?

Ladies and gentlemen:

LOOK AT SIRI.

It does not make sense.

And if it does not make sense,

YOU MUST DISMISS.
you are aware that this lawsuit is about chip/hardware design and not Siri right?
Score: 14 Votes (Like | Disagree)
teaneedz Avatar
4 weeks ago

Ladies and gentlemen of the Court, Apple says OpenAI stole its trade secrets.

Now think about this:

Siri lives on the iPhone.

OpenAI does not make the iPhone.

Apple makes the iPhone.

Yet somehow, Siri still cannot reliably turn on the kitchen lights.

That does not make sense.

Why would a company capable of stealing Apple’s most valuable AI secrets steal the secrets that produced Siri?

It does not make sense.

Apple says its former employees went to OpenAI.

But Siri stayed at Apple.

And Siri is still Siri.

That does not make sense.

If Apple’s trade secrets were stolen, why didn’t OpenAI steal Siri?

And if Siri is the trade secret—

why would anyone steal it?

Ladies and gentlemen:

LOOK AT SIRI.

It does not make sense.

And if it does not make sense,

YOU MUST DISMISS.
sam...dat u?
Score: 9 Votes (Like | Disagree)
4 weeks ago
The only thing I'll say here on this is that while "Apple's suit claims more than 400 former Apple employees now work at OpenAI", only a few of them are on Apple's "hot seat" for actions (e.g., Tan).

I have no opinion about the merits of either side of this case (I don't know enough to make a fair judgment), but do agree with Apple on this part: "Apple argues that under Ninth Circuit precedent, the case moves forward rather than being thrown out where two plausible explanations compete."

As much as I don't like lawsuits, this is a case where the legal system should figure it out rather than just take OpenAI's word that "nothing happened", which is what OpenAI is arguing.
Score: 9 Votes (Like | Disagree)
wanha Avatar
4 weeks ago

Ladies and gentlemen of the Court, Apple says OpenAI stole its trade secrets.

Now think about this:

Siri lives on the iPhone.

OpenAI does not make the iPhone.

Apple makes the iPhone.

Yet somehow, Siri still cannot reliably turn on the kitchen lights.

That does not make sense.

Why would a company capable of stealing Apple’s most valuable AI secrets steal the secrets that produced Siri?

It does not make sense.

Apple says its former employees went to OpenAI.

But Siri stayed at Apple.

And Siri is still Siri.

That does not make sense.

If Apple’s trade secrets were stolen, why didn’t OpenAI steal Siri?

And if Siri is the trade secret—

why would anyone steal it?

Ladies and gentlemen:

LOOK AT SIRI.

It does not make sense.

And if it does not make sense,

YOU MUST DISMISS.
are you okay? This case has nothing to do with Siri or AI and everything to do with HW components and secrets
Score: 7 Votes (Like | Disagree)
Samplasion Avatar
4 weeks ago

Ladies and gentlemen of the Court, Apple says OpenAI stole its trade secrets.

Now think about this:

Siri lives on the iPhone.

OpenAI does not make the iPhone.

Apple makes the iPhone.

Yet somehow, Siri still cannot reliably turn on the kitchen lights.

That does not make sense.

Why would a company capable of stealing Apple’s most valuable AI secrets steal the secrets that produced Siri?

It does not make sense.

Apple says its former employees went to OpenAI.

But Siri stayed at Apple.

And Siri is still Siri.

That does not make sense.

If Apple’s trade secrets were stolen, why didn’t OpenAI steal Siri?

And if Siri is the trade secret—

why would anyone steal it?

Ladies and gentlemen:

LOOK AT SIRI.

It does not make sense.

And if it does not make sense,

YOU MUST DISMISS.
I've never had the joy of reading a LinkedIn-style post here on MacRumors :)
Score: 7 Votes (Like | Disagree)
4 weeks ago

Apple also uses one of OpenAI's own lines against it. OpenAI's motion called its innocent explanation for Tan's conduct "at least equally plausible" as Apple's. Indeed, Apple argues that under Ninth Circuit precedent, the case moves forward rather than being thrown out where two plausible explanations compete.

I think Apple might have better lawyers…
Score: 6 Votes (Like | Disagree)

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors