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Apple shares ‘shocking evidence’ against former employee accused of stealing company data for OpenAI

Apple has filed new "shocking evidence" in its lawsuit against OpenAI, alleging that former employee Chang Liu stole trade secrets and used them at OpenAI, with a colleague's help to destroy evidence.

By Amanda Silberling·Sep 1·techcrunch.com·3 min read

Intelligence analysis by Gemini 2.5 Flash

Apple shares ‘shocking evidence’ against former employee accused of stealing company data for OpenAI
Image: techcrunch.com

Apple is intensifying its legal battle against OpenAI, presenting new evidence from a former employee's work laptop that allegedly shows the use of confidential Apple data. The company claims OpenAI was aware of the data access and that the employee, Chang Liu, attempted to destroy evidence with a colleague, Yu-Ting Peng, after learning of Apple's investigation.

Why it matters

This case highlights the growing legal complexities and intellectual property disputes arising from employee movement between major tech companies, particularly in the competitive AI sector, potentially setting precedents for trade secret protection and data management.

Imagine a kid named Chang used to build cool gadgets with special secret plans at a big company called Apple. Then, he went to work for another company, OpenAI, which also builds smart stuff. Apple now says Chang secretly took some of their special plans and used them at OpenAI, and even tried to hide the evidence! Apple wants the court to stop OpenAI from using any of their secret ideas while they figure out what happened, like telling a kid not to play with a toy they might have taken from a friend until the grown-ups decide who it belongs to.

Analysis

The ongoing legal dispute between Apple and OpenAI has escalated significantly with Apple's recent filing of what it terms "shocking evidence." This development underscores the intense competition and the high stakes involved in the artificial intelligence industry, where intellectual property and talent are fiercely guarded. The allegations against former Apple employee Chang Liu, now at OpenAI, suggest a deliberate misuse of confidential information, raising critical questions about corporate espionage and the ethical boundaries of employee transitions in tech.

Chang Liu

Chang Liu, a former Apple employee now working at OpenAI, is at the center of Apple's allegations of trade secret theft. Apple claims that Liu utilized a confidential Apple circuit schematic and a tool sharing a name with an internal Apple engineering application in his work at OpenAI. This evidence reportedly emerged from Liu's old Apple work laptop, which was handed over for investigation by his legal counsel. Furthermore, Apple alleges that Liu, upon learning of the investigation, enlisted OpenAI colleague Yu-Ting Peng to help destroy evidence in June, indicating a potential cover-up attempt. Past filings also included text messages from Liu, punctuated with "crying laughing" emojis, suggesting his awareness of continued access to Apple files after his departure. OpenAI has previously defended Liu, stating he only accessed files to assist former colleagues, attributing continued access to a common Apple system management issue. However, Apple counters that Liu "exploited a rare, previously unknown authentication bug" to maintain access.

OpenAI

OpenAI finds itself directly implicated in Apple's lawsuit, with Apple alleging that the company was "well-aware" of Liu's access to Apple data. This claim suggests a potential complicity or at least a failure in due diligence on OpenAI's part regarding the proprietary information its new hires might bring. The lawsuit's outcome could have significant ramifications for OpenAI, not just financially but also for its reputation and its ability to attract talent from rival companies. The defense offered by OpenAI, suggesting Apple's own system access management failures, points to a broader industry challenge regarding how companies manage employee offboarding and data access. With over 400 former Apple employees reportedly now working at OpenAI, the scope of potential intellectual property concerns could extend beyond just Liu's case, making this a pivotal legal battle for both companies.

Preliminary Injunction

Apple is seeking a preliminary injunction, a critical legal maneuver that, if granted, would block OpenAI from working on hardware based on Apple's technology while the case is ongoing. This injunction aims to prevent further alleged misuse of Apple's trade secrets and protect its competitive advantage in the burgeoning AI hardware space. Beyond the injunction, Apple is also pushing for expedited discovery, a fast-tracked process for gathering evidence. This request is driven by Apple's belief that more former employees may be implicated in similar activities, necessitating a rapid and comprehensive investigation. The court's decision on these requests will not only impact the immediate trajectory of this lawsuit but could also establish important legal precedents for how trade secret disputes are handled in the fast-evolving and highly competitive technology landscape, particularly concerning the movement of employees and intellectual property between industry giants.

Key points

  • Apple filed "shocking evidence" in its lawsuit against OpenAI, alleging former employee Chang Liu stole trade secrets.
  • The evidence, from Liu's old Apple work laptop, reportedly shows use of a confidential circuit schematic and an internal engineering tool at OpenAI.
  • Apple claims OpenAI was "well-aware" of Liu's access to Apple data and that Liu attempted to destroy evidence with colleague Yu-Ting Peng.
  • Apple is seeking a preliminary injunction to block OpenAI from using its technology and expedited discovery due to potential involvement of more former employees.
  • OpenAI previously defended Liu, stating he accessed files to help former colleagues and blamed Apple's system management for residual access, which Apple refutes as an "authentication bug."
The Upside

A clear legal ruling in this case could establish strong precedents for protecting intellectual property in the AI sector, encouraging fair competition and ensuring companies invest in their own innovation rather than relying on stolen secrets. This could lead to more transparent hiring practices and better data security protocols across the industry.

The Downside

The lawsuit could reveal widespread vulnerabilities in how tech companies manage employee data access after departure, potentially leading to more frequent and costly legal battles over trade secrets. It might also create a chilling effect on employee mobility between major tech firms, stifling the natural flow of talent and ideas that often drives innovation.

Originally reported at

techcrunch.com

Discernion covers the story. Read the full piece at the source.

Tagsaiappleopenaitrade-secretslawsuitintellectual-propertysecurity

Author

Amanda Silberling

Intelligence analysis by

Gemini 2.5 Flash

Published

Sep 1, 2026

Source

techcrunch.com

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Topics

aiappleopenaitrade-secretslawsuitintellectual-propertysecurity

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