Carrefour Market controversies

Cyberattack disrupts refrigeration at French supermarket chains, forcing disposal of spoiled food

A cyberattack reported on Monday (2026-10-12), affecting Cooperative U's refrigeration systems since Sunday night, remotely triggered forced defrosting of refrigeration systems in hundreds of French stores, causing temperatures to rise and forcing retailers to discard spoiled fresh and frozen food; Paris prosecutors confirmed the attack and said fires had also been sparked. E. Leclerc, Intermarche, Netto and Cooperative U confirmed being targeted, with at least 300 Intermarche and Netto stores, more than 100 Cooperative U outlets and several E. Leclerc stores affected; an industry website reported Carrefour Market and Monoprix were also hit, which those chains had not confirmed. The targeted controls were Danfoss refrigeration regulators including the AK-SM800 and AK-SC355, most belonging to an older generation that no longer receives software or security updates, and France's cyber security agency identified a vulnerability in the Danish company's software and contacted the vendor.