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TSMC Stock Slides 4% As Staff Data Of 46,000 Surfaces On Dark Web Forums

TSMC Stock Slides 4% As Staff Data Of 46,000 Surfaces On Dark Web Forums

Coinpedia • November 12, 2026

Taiwan Semiconductor Manufacturing Co said on Thursday that personal data belonging to 46,000 current and former employees appeared on an unauthorised external website. The records were reportedly listed for sale on underground forums for three Bitcoin, worth roughly $217,000 at current prices. TSMC said it has found no evidence that its internal systems were breached and is working with authorities and cybersecurity experts to contain the leak and support affected staff. The company has not said how the data was obtained. TSMC’s US-listed shares fell 4% in premarket trading. As the world’s largest contract chipmaker, TSMC produces chips for Apple, Nvidia, AMD, Qualcomm and Broadcom, and holds a market value of $1.84 trillion. The leak adds to a run of security incidents this month, including the record Binance hack and critical PHP flaws that put crypto platforms at risk.

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Extracted Entities

Attack Types (1)

Countries (1)

Vulnerabilities (1)