TSMC says employee data appeared on an outside website

TSMC's Nov. 12, 2026 Form 6-K says some current and former employee data was posted on an external website without authorization, that the company has found no evidence its own systems were compromised, and that the information matches data stored with a cloud service provider and is unrelated to operations or customer data. The filing says TSMC is notifying affected people and working with the vendor, investigators, and a cybersecurity firm. Central News Agency reported a seller's claim of 46,000 records and 6.9 GB for 3 bitcoin; the filing does not give a count, name the vendor, or confirm those fields.