Major French Supermarket Chains Hit by Cyber-Attack, Food Stock Impacted
Cyberattack on Danfoss refrigeration software hit French supermarket chains, triggering forced defrosts and spoiling food stock.
A cyber-attack from October 11, 2026 targeted refrigeration installations at multiple French supermarket chains including Coopérative U, Intermarché, E. Leclerc, Carrefour and Monoprix. Attackers reportedly compromised outdated Danfoss refrigeration control software, remotely triggering forced defrost cycles with temperatures up to 50°C. Two stores in Haguenau alone lost €270,000 in merchandise, and roughly 150 Intermarché stores are affected. Danfoss controllers have known critical CVEs (CVE-2023-25915, CVE-2025-41450/41451/41452) and Claroty demonstrated similar attacks at DEF CON 34.
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