Apple sends legal letters to OpenAI hires, report says

Apple sends legal letters to roughly 40 former employees now at OpenAI, asking them to preserve documents and communications, according to a Financial Times report cited by Mashable. The move follows Apple's lawsuit alleging two ex-staffers shared trade secrets used in OpenAI's consumer hardware work. The letters put a slice of Apple alumni at the AI company on notice as the dispute widens beyond the two people named in court.

Key Takeaways

• Apple has sent legal preservation letters to about 40 former employees who now work at OpenAI, per a Financial Times report covered by Mashable.
• The letters ask recipients to save documents and communications that could relate to their time at Apple.
• Last week, Apple sued OpenAI, claiming two ex-employees shared trade secrets tied to consumer hardware development.
• OpenAI has denied the allegations; Apple has called the known cases "just the tip of the iceberg."
• Mashable notes Apple says more than 400 former employees now work at OpenAI, so the letters cover roughly one in ten of that group.

What did Apple actually send, and why does it matter?

According to Mashable's account of the Financial Times reporting, Apple did not simply fire off angry emails. It sent legal preservation letters to roughly 40 people who left Apple and later joined OpenAI.

Those letters request that the recipients keep any documents or communications that could be relevant to their former employer. In plain terms, Apple is telling a group of ex-staffers: do not delete material that might matter later.

That matters because preservation letters often sit just upstream of discovery. Mashable notes that, based on the Financial Times report, the employees could also face discovery requests as Apple's lawsuit unfolds. For readers following Big Tech talent fights in our Nostalgia: Then & Now coverage, this is a familiar pattern with a 2026 twist: yesterday's colleague becomes today's rival, and yesterday's files become tomorrow's evidence.

For a full rundown of the Mashable report, see Mashable's coverage of Apple's legal letters to OpenAI defectors.

How does this connect to Apple's lawsuit against OpenAI?

Last week, Apple filed a lawsuit against OpenAI. Mashable reports that Apple alleges two former employees who went on to work for the AI company shared Apple's trade secrets. Apple believes that confidential information was used by OpenAI to develop consumer hardware products the AI firm is currently working on.

The two employees named in that context are Tang Yew Tan and Chang Liu. Tan is Apple's former Vice President of Product Design and now serves as OpenAI's Chief Hardware Officer. Liu was formerly an iPhone engineer at Apple and left to join OpenAI at the beginning of the year.

OpenAI has denied the allegations. In its lawsuit, however, Apple said it believes this is "just the tip of the iceberg," Mashable reports. That line helps explain why Apple would expand its paper trail beyond the two people already in the complaint.

So when Apple sends legal letters to dozens more alumni, it is signaling that the company thinks the dispute may reach further than the pair already named. The letters also function as a warning: Apple is watching closely what former employees do with knowledge and materials from their Apple years.

Who is in Apple's sights, and how big is the talent overlap?

Mashable says Apple appears to believe that additional former employees beyond Tan and Liu may have misused confidential company information. The new letters are aimed at that wider circle of OpenAI hires with Apple roots.

Scale is part of the story. According to Apple, more than 400 former employees now work at OpenAI. The roughly 40 people who received preservation letters make up about 10 percent of those Apple alumni at the AI company, Mashable notes.

That still leaves an open question the reporting has not fully answered: why these specific employees? Mashable flags that as details emerge, Apple's reasoning for targeting this subset will be worth watching. For now, the public record supports only what the Financial Times report, as summarized by Mashable, has established—letters went out, they demand preservation, and they land in the shadow of an active trade-secrets lawsuit.

Then-and-now framing helps here. Silicon Valley has long recycled talent between rivals; what has changed is how quickly a jump to an AI lab can collide with hardware ambitions and legal process. Apple's letter campaign is less nostalgia than a reminder that institutional memory travels with people—and companies will try to lock it down when the destination is a competitor building devices.

What should readers watch next in this Apple-OpenAI fight?

Three threads are already visible from the Mashable report. First, whether discovery requests follow the preservation letters and pull more names or documents into the case. Second, whether Apple names additional defendants or expands claims beyond Tan and Liu. Third, how OpenAI continues to respond after denying the existing allegations.

None of that is settled in the current reporting. What is clear is the sequence: Apple sued over alleged trade-secret sharing tied to consumer hardware, then, per the Financial Times via Mashable, Apple sends legal letters to roughly 40 more former employees now at OpenAI to freeze potential evidence in place.

Until courts and further reporting fill in the blanks, the credible takeaway is narrow but sharp. Apple is treating the OpenAI pipeline of ex-staff as a live risk surface, not a closed chapter—and it is using preservation letters to keep that surface from going dark.