The alphv ransomware group listed Optieng on its data leak site on 2023-07-26. Sector: Manufacturing Domains named: optieng.com Claim as published on the leak site: Optieng provides both solutions and equipment that can respond to this need. We design and develop Mechanical Treatment Units. We supply and install complete sorting lines or specific equipment such as crushers, screens, waste separator, digesters, presses.