Apple filed a lawsuit on Friday against OpenAI in the U.S. District Court for the Northern District of California, alleging a coordinated campaign of trade secret theft and breach of contract orchestrated by senior OpenAI leadership, including Chief Hardware Officer Tang Tan. The complaint centers on the alleged misappropriation of confidential information related to unreleased Apple products, as former employees systematically extracted proprietary data to accelerate OpenAI’s nascent hardware ambitions.
Allegations of a Coordinated Scheme Led by Former Apple Executive Tang Tan
The lawsuit details a pattern of misconduct allegedly directed by Tang Tan, who spent 24 years at Apple—most recently as VP of product design for the iPhone and Apple Watcha—before joining OpenAI. Apple claims Tan used confidential Apple project code names during OpenAI’s recruiting process, instructed job candidates to bring Apple hardware components to interviews, coached departing employees on how to evade Apple’s security protocols, and solicited details about unannounced products. The accusations paint a picture of a deliberate strategy to extract Apple’s intellectual property, leveraging insider knowledge of the company’s security infrastructure.
Specific Incidents Involving Former Systems Engineer Chang Liu
The complaint also names Chang Liu, who spent eight years at Apple as a senior systems electrical engineer before leaving for OpenAI in 2026. Apple alleges Liu failed to return an Apple-issued laptop after his departure and used the device to download confidential technical documents. These documents reportedly included information about unannounced technologies, features, and products—such as technical specifications, engineering presentations, and proprietary project data. Apple further claims Liu shared this confidential information with other Apple employees who were applying for jobs at OpenAI, coaching at least one candidate on what to study before an interview.
OpenAI’s Hardware Ambitions and the Strategic Context
The lawsuit arrives at a critical moment for OpenAI, which is widely rumored to be developing its first hardware product—a device that industry analyst Ming-Chi Kuo suggested could be a smartphone relying on AI agents instead of traditional apps. If accurate, this product would represent one of the most direct threats to Apple’s core hardware business. The complaint also references OpenAI’s $6.5 billion acquisition of Jony Ive’s device startup io last year, which was brought in to support the AI company’s hardware design efforts. While io is named in the filing, Ive is not listed as a defendant.
The Alleged Role of Apple’s Trade Secrets in OpenAI’s Hardware Development
Apple asserts that its ongoing investigation has revealed OpenAI using its confidential information directly in the development of its own hardware. The filing cites an instance where OpenAI allegedly misled a partner into believing it had Apple’s permission to use a proprietary metal finishing technique. This suggests the stolen information extends beyond general product plans to specific manufacturing processes and material science knowledge.
Apple’s Investigation and Legal Demands
Apple says it sent a letter to OpenAI in February raising its concerns but received no response. The company’s investigation, which involved analyzing communications on company-owned devices and reviewing server logs, has uncovered what it describes as a systemic pattern of theft. Apple is now asking the court to bar OpenAI from using or disclosing its trade secrets, require the return of all confidential materials, and mandate the preservation of evidence related to the case. The filing states: “This is the tip of the iceberg. Apple lacks visibility into what’s been happening behind closed doors at OpenAI, where such misconduct is normalized and exemplified by leadership.”
How Apple Typically Investigates Trade Secret Theft
Like many large technology companies, Apple routinely monitors its internal systems for signs of data exfiltration. The investigation leading to this lawsuit involved examining communications from company-issued devices and analyzing server logs for unauthorized access patterns. By taking the case to federal court, Apple will gain access to the legal discovery process, which could reveal further details about the alleged operation that are currently outside its direct visibility.
What This Lawsuit Means for the AI Hardware Landscape
The case highlights an increasingly high-stakes dynamic in the AI industry, where the race to build physical hardware is colliding with established intellectual property protections. OpenAI’s venture into hardware places it in direct competition with Apple, a company with one of the most aggressive legal and security apparatuses in the tech sector. The outcome of this lawsuit could set important precedents regarding how former employees may transition between companies in the AI hardware space and what constitutes permissible use of general industry knowledge versus protected trade secrets. For professionals and developers in the AI ecosystem, this case serves as a clear signal that the enforcement of IP rights is intensifying as hardware and software converge.
