The black x ransomware group listed Daechang Solution on its data leak site on 2026-06-13. Country: KR Sector: Professional Services Domains named: dsol.co.kr Claim as published on the leak site: We possess all the core technical data of Daechang Solution. (Technical Research Institute, Valve Team, Cryogenic Team, Innovation Team, Sales Team, Finance Team, Materials Team, Quality Team, General Affairs Team, Production Team) we will sell it to only one.