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TSMC Confirms Data Leak of 46,000 Employee Records on Dark Web

TSMC Confirms Data Leak of 46,000 Employee Records on Dark Web

First seen 12 Nov 2026, 20:14 UTC • •
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ThreatCluster AI
ThreatCluster •November 12, 2026 at 21:45 UTC
  • •46,000 employee records leaked, offered for sale on dark web for 3 Bitcoin.
  • •TSMC confirmed no internal systems were breached; data linked to a cloud service provider.
  • •Sensitive information includes personal details and bank account information of employees.

Taiwan Semiconductor Manufacturing Company (TSMC) has confirmed a data leak involving approximately 46,000 employee records, which are being offered for sale on dark web forums for 3 Bitcoin. The company stated that its internal systems were not compromised, and the leaked data matches information stored with a cloud service provider. The hackers released a sample file containing 499 records with sensitive details such as names, addresses, and bank account information. TSMC is currently notifying affected employees and collaborating with the cloud provider and cybersecurity experts to investigate the breach. The incident has raised concerns about employee privacy and potential identity theft, although TSMC emphasized that no critical production data was exposed. The company's stock fell by 4% following the news. TSMC has not disclosed the name of the cloud service provider involved in the breach.

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Timeline

2026-11-11
Data leak first reported
Hackers posted claims on underground forums about accessing TSMC employee data.
Finance.Biggo
2026-11-12
TSMC confirms data leak
TSMC acknowledged the leak of employee records and stated its internal systems were not compromised.
Wccftech
2026-11-12
Stock market reaction
TSMC shares fell 4% in premarket trading following the announcement of the data breach.
Coinpedia

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Common questions

What type of data was leaked?
The leaked data includes names, addresses, bank account information, and emergency contact details of employees.
Is TSMC's core business affected?
No, TSMC confirmed that the leaked data is unrelated to its manufacturing operations or customer information.
What actions is TSMC taking?
TSMC is notifying affected employees and working with cybersecurity experts and the cloud provider to investigate the breach.