Cyberattack Overheats French Supermarket Fridges, Causing Fires and Spoiled Food

Hackers raised the temperature of connected refrigerators and freezers at hundreds of French supermarkets up to 50 degrees Celsius overnight, triggering fires and severe food spoilage.

Retailers such as Carrefour, Monoprix, and Intermarche confirmed dozens of affected stores, with Intermarche estimating nationwide losses in a single day at tens of millions of euros.

French National Cybersecurity Agency ANSSI identified a vulnerability in outdated firmware of refrigeration management software supplied by Danish company Danfoss.