2026 Hitachi High-Tech — Coinbase Cartel leak-site claim (unverified)
Data compromised
No company-confirmed data categories or census at indexing; actor listing only — recordsAffected 0 labeled unverified.
Technical writeup
Unverified leak-site / extortion claim — August 13, 2026. Dark Web Informer’s ransomware recap and threat trackers listed Hitachi High-Tech Corporation on the Coinbase Cartel extortion site. Hitachi High-Tech is a major semiconductor and analytical-equipment supplier within the Hitachi group. The company had not issued a matching public incident confirmation in sources reviewed at indexing, and no attested recordsAffected figure exists. BreachHistory indexes recordsAffected 0 labeled unverified pending victim confirmation.
Root cause
Coinbase Cartel ransomware/extortion leak-site listing observed August 13, 2026