The deadlock ransomware group listed Muzeum Valassko on its data leak site on 2026-07-10. Country: CZ Sector: Hospitality Domains named: www.muzeumvalassko.cz Claim as published on the leak site: Muzeum regionu Valašsko (The Museum of the Wallachian Region) is a multi-site cultural institution in the Zlín Region of the Czech Republic.