The lamashtu ransomware group listed Gauthier Tissus on its data leak site on 2026-04-13. Country: FR Sector: Manufacturing Domains named: gauthier-tissus.com Claim as published on the leak site: Based in the Rhone-Alpes basin, Gauthier Tissus is specialized in the weaving and finishing of multi-risk fabrics for technical usage, fabrics for brand image clothes and uniforms.