World's largest chipmaker TSMC says it has discovered potential trade secret leaks

Key Points

• Taiwan Semiconductor Manufacturing Co. said it had detected "unauthorized activities" that lead to the discovery of potential trade secret leaks.
• TSMC said it has taken action against the personnel involved and launched legal proceedings.
• The world's biggest semiconductor manufacturer dominates the market for the manufacturing of the most advanced chips and counts major firms like Apple and Nvidia as clients.

A motorcycle is seen near a building of the Taiwan Semiconductor Manufacturing Company (TSMC), which is a Taiwanese multinational semiconductor contract manufacturing and design company, in Hsinchu, Taiwan, on April 16, 2025.

Taiwan Semiconductor Manufacturing Co. said on Tuesday that it had detected "unauthorized activities" that lead to the discovery of potential trade secret leaks.

The world's biggest semiconductor manufacturer told CNBC that it has taken "strict" disciplinary action against the personnel involved and that it has also launched legal proceedings.

"TSMC maintains a zero-tolerance policy toward any actions that compromise the protection of trade secrets or harm the company's interests," the company said.

"Such violations are dealt with strictly and pursued to the fullest extent of the law. We remain committed to safeguarding our core competitiveness and the shared interests of all our employees."

TSMC, headquartered in Taiwan, dominates the market for the manufacturing of the world's most advanced chips and counts major tech giants including Apple and Nvidia as clients.

As the case is now under judicial review, TSMC is unable to provide further information, the firm said.

TSMC identified the issue early due to its "comprehensive and robust monitoring mechanisms," the company said, adding that it carried out swift internal investigations.

Nikkei Asia, citing multiple sources familiar with the matter, reported on Tuesday that several former employees of TSMC are suspected of attempting to obtain critical proprietary information on 2-nanometer chip development and production while they were still working at the company.

Production of the 2-nanometer chip is among the leading edge manufacturing processes in the semiconductor industry currently.