Cyberattack Disrupts French Supermarkets' Refrigeration Systems

• •Over 350 French supermarkets were affected by a cyberattack on refrigeration systems.
• •The attack exploited outdated software from Danfoss, with known vulnerabilities.
• •No group has claimed responsibility, raising questions about the attack's motives.

On October 13, 2026, French investigators began searching for hackers who compromised cooling units at over 350 supermarkets, including Carrefour and Monoprix, causing food spoilage and potential fires. The attack manually altered refrigerator temperatures, exploiting vulnerabilities in outdated software from Danish firm Danfoss. The affected fridges were reportedly running legacy firmware that no longer received security updates. Cooperative U's CEO estimated losses could reach tens of millions of euros nationwide. Despite the scale of the attack, no group has claimed responsibility, leaving investigators puzzled. Cybersecurity experts noted the attack could have been easily executed due to basic cyber hygiene failures, with many vulnerable systems still accessible online. The investigation is ongoing, with authorities assessing risks to other companies.