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Hackers heated Intermarché refrigerators in France, causing fires and food losses at about 150 targets.
Reuters reports that French supermarket chain Intermarché was hit by a cyberattack in which hackers raised refrigerator temperatures, sparking fires and food losses. The story headline indicates about 150 targets. The available text does not name malware, a vulnerability, an intrusion method, or a responsible group.
Attackers remotely compromised Danfoss refrigeration controllers in ~150 French supermarkets, setting temperatures to 50°C and causing major food spoilage and financial losses.
French supermarket chains Intermarché, E.Leclerc, and Système U experienced a cyberattack targeting Danfoss refrigeration control systems overnight October 11-12, with attackers remotely setting temperatures to 50°C and triggering continuous defrost cycles across affected stores. Approximately 150 Intermarché stores were impacted, with potential losses reaching hundreds of thousands of euros from spoiled food stock. Coopérative U CEO Dominique Schelcher confirmed criminal activity affected refrigeration production systems. The exact intrusion method, responsible group, and whether a known vulnerability was exploited remain unconfirmed, though older software versions are suspected.
Hackers forced Danfoss fridge controls at French supermarkets into continuous defrost, also hitting deliveries and prices.
An ongoing cyberattack has disrupted Danfoss refrigeration controls used by French supermarket chains Intermarché, Leclerc, and Coopérative U, according to La Dépêche and Tom's Hardware. Coopérative U president Dominique Schelcher confirmed Monday morning that refrigeration systems at several stores in the network had been affected since the previous night and called the incident extremely serious. Reports say units were set to defrost continuously at 50 degrees Celsius, while deliveries and electronic shelf-label pricing were also impacted. Teams were mobilized to restore systems and an investigation was promised.
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 Attackers reportedly compromised outdated Danfoss refrigeration control software, remotely triggering forced defrost cycles with temperatures up to 50°C. Two stores in Haguenau alone lost €270,000 in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.