Major French Supermarket Chains Hit by Cyber-Attack, Food Stock Impacted

Multiple French supermarket chains including Coopérative U, Intermarché and others were hit by a cyber-attack beginning around 11 October that manipulated refrigeration systems — reportedly triggering forced defrost cycles and temperatures up to 50 °C — causing spoilage and reported financial losses; reporting links the incident to outdated Danfoss refrigeration control software and references prior vulnerabilities and research demonstrating how refrigeration controllers can be compromised.