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Cyber Attack on French Supermarkets Causes Massive Food Spoilage

Cyber Attack on French Supermarkets Causes Massive Food Spoilage

First seen 19 Oct 2026, 17:21 UTC • •
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ThreatCluster AI
ThreatCluster •October 19, 2026 at 18:51 UTC
  • •Up to 700 French supermarkets were affected by a cyber-attack on refrigeration systems.
  • •The attack caused significant food spoilage and potential fire hazards due to overheating.
  • •Insurers warn that standard cyber policies may not cover the resulting physical losses.

A cyber-attack on October 11-12, 2026, targeted the temperature control systems of supermarket refrigeration units across France, affecting major chains like Intermarché, Carrefour, and Monoprix. Hackers remotely raised temperatures in fridges and freezers, leading to the spoilage of food and causing some equipment to catch fire. Up to 700 stores were impacted, resulting in tens of millions of euros in losses. The Paris prosecutor's office has launched an investigation into the incident, which is being described as a large-scale attack. The refrigeration systems involved were supplied by Danfoss, which noted that many units were running outdated firmware. Insurers have indicated that standard cyber policies may not cover the physical losses incurred from this attack. The identity of the attackers remains unknown, and authorities are exploring various theories regarding the motive behind the attack.

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Timeline

2026-10-11
Cyber-attack initiated
Hackers remotely compromised temperature control systems in supermarket refrigeration units, raising temperatures significantly.
Supplychainbrain
2026-10-12
Attack impact confirmed
Major supermarket chains reported extensive food spoilage and operational disruptions across hundreds of stores.
Eng.Insurancenewsbd
2026-10-18
Investigation launched
The Paris prosecutor's office opened an investigation into the cyber-attack, examining the potential involvement of state actors.
Eng.Insurancenewsbd

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Common questions

Which supermarket chains were affected?
The attack impacted major chains including Intermarché, Carrefour, Coopérative U, and Monoprix.
What caused the food spoilage?
Hackers remotely increased the temperatures in refrigeration units, causing food to spoil and some equipment to overheat.
Are there any updates on the investigation?
The Paris prosecutor's office has opened an investigation, but the identity of the attackers remains unknown.