A hacker offered data allegedly belonging to TSMC employees for 3 bitcoin on an underground forum, claiming it contained 46,000 records totaling 6.9 GB and threatening to publish all of it if no buyer came forward within a week. According to Foresight News, citing Jiemian News, TSMC confirmed that information about some current and former employees had been disclosed without authorization.
The company said the data matched information held in a cloud service provider's system, and that there was no evidence its own systems had been breached. TSMC said the information was unrelated to its production operations and customers. It has notified affected people and offered assistance, and is investigating with the cloud service provider, authorities and third-party cybersecurity firms.