TSMC Reports Unauthorized Access to Employee Personal Data

Taiwan Semiconductor Manufacturing Company Limited said on November 12, 2026 that some current and former employee data was made available on an external website without authorization. The company said it has found no evidence that its systems have been compromised. It also said the information matches data stored in the system services of a cloud service provider and is unrelated to company operations or customer data.

Scope of the Incident

TSMC said the information has been verified to match data stored in the system services of a cloud service provider. The company said that data is unrelated to its operations or customer data. It also said there is no evidence that TSMC's systems have been compromised.

Support and Investigation

TSMC said it has been informing impacted personnel and is providing them with necessary support. The company said it has engaged with the cloud service vendor, relevant investigating authorities, and a third-party cybersecurity agency. Together, they are working to ascertain the facts and take necessary actions.

Privacy Commitment

TSMC said it remains firmly committed to protecting employee privacy and safeguarding data security.

Sources: sec.gov