Danfoss: news, timeline and key numbers

Danfoss-managed refrigeration systems were at the center of a cyberattack on supermarkets in France. On 2026-10-12, attackers hit hundreds of stores on a Sunday night. They disabled vital equipment, and the fridges were heated to 50°C, spoiling inventory. A spokesperson for Groupement Mousquetaires told Bloomberg that about 150 Intermarché locations were compromised.

By 2026-10-15, the scale of the incident was clearer. An estimated 700 supermarkets across France were struck, and locations in Spain, Portugal, Poland, Germany and Belgium were also affected. Unidentified attackers had hijacked internet-connected refrigeration systems. French authorities confirmed that the hackers compromised remote administration controllers and activated defrosting mechanisms. The attack exploited critical flaws in the fridge controllers.

On 2026-11-04, a related case emerged. The French Blood Establishment, the country's civilian blood service, said attackers tampered with cold-storage settings after compromising one of its refrigeration suppliers. Its monitoring and alarm systems quickly flagged the anomalies, so no blood products or samples were lost.

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