Apple Takes Legal Action Against OpenAI Over Stolen Secrets

Apple has launched a major legal battle against OpenAI, accusing the artificial intelligence company of using stolen trade secrets to build its own hardware products. This new lawsuit, filed in July 2026, claims that a former Apple engineer used a secret software error to download private company files after he had already left the business.

According to Ars Technica, the trouble began when Apple discovered a rare "authentication bug." In the world of technology, an authentication bug is a mistake in a computer system that lets someone enter a private network without the correct permission. Apple reported that this specific error allowed a former employee, Chang Liu, to access shared network folders even after he had left his position at Apple to join OpenAI in January 2026.

Apple claims that instead of telling the company about the error, Liu used it to download dozens of confidential files. These files reportedly included detailed information about unreleased products, technical specifications, and internal engineering presentations. Among the stolen items was a presentation on complex circuit boards, which Apple described as "invaluable" to any company trying to develop new hardware. The lawsuit suggests that OpenAI wanted to use this information to create AI-powered devices that could compete directly with the iPhone.

Evidence for the lawsuit came from messages found on a work laptop that Liu should have returned to Apple. In one message sent to a current Apple employee named Yu-Ting “Alyssa” Peng, Liu allegedly mocked his former employer. He wrote, "I found out I can access the network storage, so funny." Apple discovered these messages while investigating internal communication, which led them to find the security problem. The company confirmed that the bug was quickly fixed once they realized what had happened.

This legal action is a significant step for Apple, which is now seeking injunctions—official court orders that stop a person or company from doing something—to prevent OpenAI from using the stolen information. Apple argues that OpenAI worked with former Apple staff as part of a larger plan to take an "unlawful shortcut" in the technology market. By hiring these engineers and gaining access to private data, Apple believes OpenAI was trying to skip the hard work of research and development.

While this situation is serious, Apple noted that the security bug did not seem to be used by many other people. According to the lawsuit, server logs show that while other users might have been affected by the same bug, there is no evidence that they accessed or stole confidential information like Liu did. Apple is still investigating the full extent of the data loss, but they are confident that the problem is now under control.

This case highlights the growing tension between major technology companies as they race to build the next generation of AI devices. As companies compete to create the most advanced technology, the protection of trade secrets—private information that gives a company an advantage over its rivals—has become more important than ever. For Apple, this lawsuit is a way to defend its years of research and ensure that its competitors cannot simply take its hard work to get ahead.

As the legal process moves forward, the tech industry will be watching closely to see how the court handles these claims. If Apple proves that OpenAI used stolen information to build its products, it could lead to heavy penalties for the AI company. For now, the focus remains on the investigation and the court's decision on whether to block OpenAI from using the data in question. This case serves as a reminder of how quickly a small security error can turn into a major legal and business crisis.