Apple Accuses Former Engineer of Funneling Proprietary Schematics to OpenAI and Erasing Evidence

In an escalating legal confrontation between Silicon Valley heavyweights, Apple has presented what it calls shocking new evidence in its federal trade secrets lawsuit against OpenAI and former hardware engineers. According to a filing submitted to the U.S. District Court for the Northern District of California, forensic analysis of a work laptop revealed that former Apple engineer Chang Liu improperly accessed confidential circuit schematics, trained an autonomous AI agent to run simulations on the designs, and subsequently coordinated the destruction of forensic records once an internal probe began^[3].

The explosive filings mark a severe deterioration in relations between the iPhone maker and the generative artificial intelligence leader, which initially entered into an official partnership earlier this year. As OpenAI accelerates its push into consumer hardware with a massive influx of former Apple talent, the courtroom clash is emerging as a bellwether test of how proprietary engineering data and modern artificial intelligence tooling intersect under intellectual property law.

Forensic Findings From a Returned MacBook

The new allegations stem from forensic imaging of an Apple-issued MacBook that Liu retained for weeks after departing the company in January to join OpenAI, according to reporting from 9to5Mac and Gizmodo. In the brief filed in support of its motion for expedited discovery, Apple alleged that Liu downloaded a highly confidential circuit schematic in March, two months after leaving his post.

Apple claimed that Liu loaded the proprietary schematics into LTspice, a widely used electrical engineering simulation software, to model circuit behavior for OpenAI power conversion projects. Internal text messages cited in Apple's court documents show Liu boasting about utilizing an autonomous AI agent to operate the software and iterate on designs.

Where trade secret information is fed into an AI agent or model that 'learns' from it, such 'learning' may create irreversible and continually propagating uses of the trade secret.

Apple legal filing in U.S. District Court

Apple argued that feeding proprietary schematics directly into AI models could permanently contaminate external systems, as the models potentially absorb and replicate protected engineering architecture^[4].

Allegations of Evidence Spoliation

Beyond the misappropriation claims, Apple's latest filing introduces accusations of deliberate evidence destruction. As detailed by TweakTown and Engadget, investigators claim that upon learning he was under internal scrutiny in June, Liu instructed an OpenAI colleague, Yu-Ting Peng, to factory-reset devices and wipe forensic trails that Apple would require during discovery^{[4, 6]}.

• Unauthorized schematic downloads: Liu allegedly retrieved proprietary Apple electrical schematics via lingering access to third-party cloud repositories.
• AI simulation pipeline: The engineer connected his Apple hardware to a Mac mini to automate design testing using internal Apple tooling conventions.
• Instruction to erase records: Apple cited communications in which Liu coordinated device wipes with fellow employees to impede forensic recovery.
• Widespread awareness: Apple argued that multiple OpenAI colleagues were conscious of Liu's continued access to Apple infrastructure.

OpenAI Strikes Back Over Offboarding Failures

OpenAI vigorously rejected Apple's framing of the forensic findings, telling the court that the entire dispute represents a mess of Apple's own making, as Reuters reported. In its counter-filing, OpenAI argued that Apple is weaponizing litigation to curb lawful employee mobility after struggling to retain top-tier talent in artificial intelligence^[1].

According to OpenAI's legal team, Apple frequently encourages staff to use personal iCloud accounts for business documentation, creating ambiguous residual data caches after departure. OpenAI maintained that Liu only accessed residual files because former Apple colleagues repeatedly contacted him after his exit asking for assistance in finding archived documentation. OpenAI also pointed out that Apple routinely escorts departing workers off campus immediately, leaving insufficient time for a clean device handover or data de-provisioning.

A Broader Clash Over Consumer AI Hardware

The escalating dispute highlights the intense talent war surrounding next-generation AI devices. Apple first filed suit in July against OpenAI, its hardware subsidiary io Products, and former vice president Tang Tan, who served at Apple for 24 years before becoming OpenAI's chief hardware officer. Apple estimates that roughly 400 former employees have transitioned to OpenAI, many working on upcoming consumer form factors^[5].

Federal Judge Edward J. Davila is scheduled to hear oral arguments regarding Apple's request for preliminary injunctions and expedited discovery on October 1. Until then, the dispute underscores the acute legal hazards companies face when departing engineers take their technical expertise and automated AI workflows to direct rivals.