Apple’s Trade Secrets Battle with OpenAI Heats Up

Apple is taking OpenAI to court over stolen trade secrets. The tech giant claims former Apple employees took confidential information to OpenAI. On August 4, 2026, Apple filed a lawsuit seeking a preliminary injunction. This would stop OpenAI from developing AI products using Apple’s technology.

Apple says its investigation uncovered more than just the two former employees originally named. Beyond Chang Liu and Tang Yew Tan, eleven other former Apple workers could be involved or act as witnesses. Apple alleges one former employee met with Liu and Yu-Ting Peng before Peng’s OpenAI interview. During that meeting, Apple claims proprietary information was discussed.

One shocking claim is that a former employee took screenshots of secret Apple documents. These documents relate to an unannounced product. Apple also says several ex-employees now at OpenAI contacted the company to return Apple-issued work devices. This adds fuel to Apple’s concerns about data security and leaks.

OpenAI Pushes Back Hard

OpenAI responded the same day Apple filed the lawsuit. They called Apple’s request for a preliminary injunction “both based on false information and completely unnecessary.” OpenAI insists it does not have, nor wants, any Apple trade secrets. Instead, OpenAI says it focuses on building new technology and products.

OpenAI also claims Apple’s lawsuit is “careless, aggressive and oddly personal.” They published chat logs and emails to defend themselves. OpenAI says Apple even emailed the wrong person due to confusing two Asian last names. OpenAI says Apple’s claim about trying to contact them in February is false.

Details on the Employees and Allegations

Chang Liu, a senior systems engineer at OpenAI, allegedly accessed and downloaded dozens of confidential Apple files. These included details about unreleased products, engineering presentations, and technical specs. Tang Yew Tan, OpenAI’s Chief Hardware Officer, worked at Apple for 24 years. He was the vice president of product design.

Apple accuses Tan of directing job candidates to bring “actual parts” to interviews. This was allegedly done to gather confidential Apple information. This claim paints a picture of a serious breach of trust and company secrecy. OpenAI, however, views these accusations as attempts to blame poor system management. They say Apple is trying to shift responsibility for residual access when employees leave.

The legal battle is set against the backdrop of Apple’s event in San Francisco from October 13 to 15, 2026. The timing adds pressure as Apple prepares to unveil new products. The outcome of this case could impact how tech companies protect their secrets and handle employee transitions.

For now, the dispute highlights the tension between traditional tech giants and fast-moving AI startups. It also raises questions about how companies safeguard sensitive information. The fight will continue in court, but it’s clear both sides are prepared for a tough showdown.

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