GoKawiilFrench supermarket fridge hack exploited known flaws in Danfoss, Copeland controllers
Attackers remotely compromised Internet-connected refrigeration controllers at an estimated 700 French supermarkets this week, triggering defrost cycles that pushed temperatures to as high as 50°C. The malfunction spoiled large quantities of perishable food and caused electrical fires in some stores, French authorities said. The controllers involved, made by Danfoss, Dixell and parent company Copeland, had publicly documented critical vulnerabilities, including a Danfoss credential-generation scheme that could be reverse-engineered from publicly available firmware.