Cyberattacks spoil food as refrigeration fails at French supermarkets
Cyberattacks disrupted refrigeration systems at hundreds of French supermarkets, raising temperatures to as high as 50°C and spoiling perishable food. The incidents forced retailers to discard stock and, in some cases, fires were reported.
Intermarché’s owner said about 150 stores were affected, Carrefour confirmed around 80, and Coopérative U reported 80 of its 2,000 stores hit. Monoprix said roughly 5 per cent of its 490 stores experienced problems. Some affected sites used Danfoss controllers; the company said the equipment was running outdated firmware, but authorities have not confirmed whether previously disclosed vulnerabilities were used.
- Refrigeration attacks spoiled food across hundreds of French stores.
- Temperatures reportedly reached 50°C.
- The role of known vulnerabilities remains unconfirmed.
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French supermarkets rely on electronic controls to keep chilled and frozen food at safe temperatures. These systems monitor refrigeration equipment and can be managed remotely, so a fault or unauthorised access can affect food storage across a shop.
The retailers named in reports include Intermarché, Carrefour, Coopérative U and Monoprix, while Danfoss makes some of the controllers used at affected sites. The incidents matter because spoiled food can mean significant waste and disruption, and refrigeration failures can also create safety risks; the precise cause of the attacks has not been confirmed.
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Originally published by The Register as “Cyberattacks crank French supermarket refrigeration systems up to 50°C”.