Home Business Aluminium producer Hydro hit by cyber attack, shuts some plants Business Aluminium producer Hydro hit by cyber attack, shuts some plants By Genpie - March 19, 2019 201 0 Facebook Twitter Google+ Pinterest WhatsApp Norsk Hydro, one of the world’s largest producers of aluminium, was battling on Tuesday to contain a cyber attack which hit parts of its production, sending its shares lower.