The exitium ransomware group listed KOIKE Sanso Kogoyo Co. Ltd. on its data leak site on 2026-10-10. Country: JP Sector: Manufacturing Domains named: koike-asia.com, koike-japan.com Claim as published on the leak site: Website: koike-japan.com You have time until Tuesday(10.13.2026). If you wouldn't contact us we will start selling data. We have 5.8 TB of data: agreements confidential data correspondence files all customers and clients data engineering drawings AND MUCH MORE... Contact us until your time runs out.