Stelco announces cybersecurity attack on its information systems

Date Announced

October 25, 2020

Lead Office


On October 25, 2020, Stelco Holdings Inc. announced that it was subject to a cybersecurity attack on its information systems. Stelco, with the assistance of cybersecurity specialists and advisors, implemented countermeasures in accordance with its cybersecurity policies and procedures, including temporarily suspending steel production. The countermeasures limited the scope of the attack and operations have since resumed.

McCarthy Tétrault advised Stelco with a team led by Dan Glover and included Andrew Parker, Scott Bergen, James D. Gage, Heidi Gordon and Ellen Y. Chen.