Wire and Logic
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newsFriday, July 17, 2026·2 min read

Apple sends legal preservation letters to ~40 former staff now at OpenAI

Apple escalates its trade‑secret lawsuit by mailing preservation demands to about 40 ex‑Apple engineers now at OpenAI.

Secretary of State Peter Kyle attends a breakfast roundtable.
Photo: Department for Science, Innovation & Technology

Apple has escalated its trade‑secret lawsuit against OpenAI by sending legal preservation letters to roughly 40 former Apple employees now working at the AI startup. The letters demand that the recipients keep any documents and communications that could relate to Apple’s hardware designs. Apple believes the alleged misappropriation may extend beyond the two executives already named in its complaint. The move signals a broader effort to gather evidence as the case moves forward. For developers and engineers, the dispute highlights the risks of moving between competing tech firms.

What happened

According to filings and reports, Apple’s counsel mailed preservation letters to about 40 former employees who left Apple for OpenAI. The letters instruct the recipients to retain any files, emails, or other communications that might contain Apple‑related information and to schedule meetings with Apple’s lawyers.

The letters follow Apple’s recent lawsuit accusing OpenAI of stealing hardware engineering trade secrets, including designs and manufacturing processes. Apple also sued two former executives, Tang Tan and Chang Liu, for breach of contract, and claims the total pool of former Apple staff at OpenAI exceeds 400 people.

Why it matters

The case could set precedents for how trade‑secret claims are enforced in the fast‑moving AI hardware space, affecting talent mobility, collaboration norms, and the legal exposure of engineers who transition between rivals.

+ Pros
  • Provides Apple a chance to secure evidence before it’s altered or destroyed.
  • Signals to the industry that trade‑secret protection will be aggressively enforced.
  • May deter future poaching of sensitive talent without proper safeguards.
Cons
  • Creates legal uncertainty for engineers working on competing projects.
  • Could slow innovation as companies become more cautious about sharing internal knowledge.
  • Adds litigation costs and distraction for both Apple and OpenAI.

How to think about it

If you’re an engineer moving between firms, review any non‑compete or confidentiality agreements, document the origin of your work, and consider seeking counsel before discussing prior projects. Companies should implement clear data‑hand‑off procedures and educate staff about preservation requests to avoid inadvertent violations.

FAQ

What legal obligations do former employees have when they receive a preservation letter?+
Recipients must retain all potentially relevant materials and cooperate with any lawful request for information, but they should seek legal advice before responding.
How might this lawsuit affect the development of OpenAI’s AI hardware?+
If Apple secures an injunction, OpenAI may need to redesign components to avoid using any alleged Apple‑derived information, potentially delaying product timelines.
Can companies still hire talent from competitors without risking trade‑secret claims?+
Hiring is permissible, but both parties must ensure that no confidential information is transferred and that employees honor any existing confidentiality or non‑compete obligations.
Sources
  1. 01Apple targets dozens of OpenAI employees with legal letters
  2. 02Report: Apple Sends Legal Letters to Dozens of OpenAI Employees
  3. 03Apple reportedly sent legal warnings to dozens of former employees at OpenAI.
  4. 04Apple targets dozens of OpenAI employees with legal letters in escalation of lawsuit
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