The alphv ransomware group listed Greenfiber on its data leak site on 2023-07-26. Country: CA Sector: Manufacturing Domains named: greenfiber.com Claim as published on the leak site: All data published and available for downloading! Enjoy! Greenfiber is a national manufacturer of cellulose insulation. Providing energy saving and cost effective insulation choices for the US and Canada. Greenfiber has the industry's leading cellulose insulation products