TSMC Says It Found No Evidence of a Breach After Employee Data Appeared Online

Taiwan Semiconductor Manufacturing Co. (TSMC) said Thursday it had found no evidence of an intrusion into its systems after information about current and former employees appeared online without authorization.

The company said the records match information in a cloud service provider’s systems and are unrelated to its production or customer data. TSMC is notifying affected people and providing assistance.

TSMC is working with the provider, investigative authorities and third-party cybersecurity organizations to clarify the situation and take necessary measures.

A seller on an underground forum claimed to offer 46,000 employee records totaling 6.9 gigabytes for 3 Bitcoin (BTC). The seller threatened to publish all the data if no buyer emerged within a week.