A hacker is selling what appears to be personal data of up to 46,000 TSMC employees on an underground forum, demanding 3 Bitcoin and threatening to release the full 6.9GB dataset if no buyer emerges within a week. TSMC confirmed that data belonging to some current and former employees was disclosed without authorization. Preliminary findings indicate the leaked information matches records held by a cloud service provider rather than TSMC's own systems, with no evidence of a breach to the company's internal infrastructure. TSMC stated the exposed data is unrelated to production or customer information and has begun notifying affected individuals while coordinating with the cloud provider, law enforcement, and cybersecurity firms to investigate the incident.