European Supermarkets Suffer Devastating Cyberattack
Hackers Target Danfoss Refrigeration Systems
Tech publication Tom’s Hardware published a detailed report on October 12. They documented an unprecedented cyberattack striking major supermarket chains across Europe. Malicious actors successfully compromised Danfoss refrigeration control systems. Specifically, they targeted various commercial cooling and freezing units. The attackers aggressively forced these systems into a continuous defrost cycle at 50 degrees Celsius. Consequently, this sabotage completely paralyzed the essential equipment. Furthermore, the incident thoroughly disrupted food deliveries and electronic shelf label pricing.
Widespread Impact Across Europe
Regarding the operational scope, the breach primarily targeted Danfoss infrastructure. Currently, affected retailers include massive French giants like Intermarche, Leclerc, and Cooperative U. Therefore, this crisis severely impacts daily grocery shopping for ordinary residents across France, Belgium, and the Netherlands.
Cooperative U President Dominique Schelcher confirmed the breach on the morning of October 12. He stated that targeted cyberattacks struck refrigeration facilities at multiple store locations overnight. Accordingly, the company immediately mobilized refrigeration technicians to repair the compromised systems. They also launched a comprehensive internal investigation. He officially characterized the alarming incident as extremely serious.
The Mechanics of the Sabotage
Regarding the attack methodology, reports indicate hackers cleverly exploited the automated defrost function. Engineers originally designed this specific feature to protect the cooling systems. Normally, this routine function runs for merely two hours daily. However, the attackers aggressively reconfigured it to a forced and continuous defrost state. They deliberately locked the internal temperature at a scorching 50 degrees Celsius.
Consequently, when stores officially opened, refrigerators and freezers literally released waves of heat. The paralyzed control systems created entirely abnormal food storage environments. These compromised units simply could not maintain proper low temperatures safely.
Financial and Logistical Consequences
This massive cyber event also caused widespread collateral damage. It severely disrupted standard grocery delivery logistics. In addition, the breach thoroughly compromised the dynamic pricing systems supported by electronic shelf labels inside the stores.
As of October 12, two specific Intermarche and Leclerc stores in the French Alsace region reported initial damages. These early financial losses totaled 270,000 euros. Meanwhile, emerging reports suggest the attack impacted approximately 150 different Intermarche locations. Ultimately, total financial damages across the industry could easily reach millions of euros.











