TSM 6-K: SEC filing
TSMC
Filed with the SEC on · accession 0001046179-26-000800
TSM filed a 6-K (foreign company report) with the SEC on Nov 12, 2026. TSMC disclosed that some current and former employee personal data was found on an external website without authorization, likely originating from a cloud service provider's systems rather than TSMC's own systems.
Summary of the filing
TSMC disclosed that some current and former employee personal data was found on an external website without authorization, likely originating from a cloud service provider's systems rather than TSMC's own systems. The company is notifying impacted personnel and has engaged the cloud vendor, authorities, and a third-party cybersecurity firm to investigate.
Key details
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What did TSM file with the SEC on Nov 12, 2026?
TSM filed a 6-K (SEC filing). TSMC disclosed that some current and former employee personal data was found on an external website without authorization, likely originating from a cloud service provider's systems rather than TSMC's own systems. The company is notifying impacted personnel and has engaged the cloud vendor, authorities, and a third-party cybersecurity firm to investigate.
How do I read a 6-K?
How foreign companies listed in the US report news and events — like an 8-K for them. Look at the exhibit names: "results", "resign", "notice" tell you the topic. Many 6-Ks are routine (meeting notices); results and leadership changes matter most.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 6-K (foreign company report): How foreign companies listed in the US report news and events — like an 8-K for them.
Other TSM SEC filings
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