Apple has reportedly sent legal letters to dozens of OpenAI employees, according to the Financial Times, marking a sharper turn in a trade secrets dispute involving the artificial intelligence company.

The move suggests Apple is widening its approach beyond a broader corporate disagreement and directing legal pressure toward individuals connected to OpenAI. Based on the report description, the iPhone maker is stepping up what are described as aggressive tactics as the dispute develops.

While the available details are limited, the reported action highlights how seriously major technology groups are treating trade secrets and proprietary information in the fast-moving AI sector. Legal fights tied to talent, research and confidential know-how have become more significant as competition around artificial intelligence intensifies.

The reported letters add another layer to the growing tension between powerful tech companies and AI labs, where questions around intellectual property and internal knowledge can quickly become central to broader business and technology conflicts.