Hackers Target French Supermarket Refrigeration Systems in Nationwide Cyberattack

On the night of October 11-12, 2026, cyber attackers gained access to refrigeration control systems used by major French supermarket chains including Intermarché and Coopérative U. The intrusion allowed attackers to manipulate temperature settings, pushing refrigeration units to approximately 50 degrees Celsius (122 Fahrenheit).

Key details

The attack affected an estimated 150 Intermarché stores and nearly 100 Coopérative U outlets, with additional impact reported on other chains. Food safety officials confirmed that products stored in the compromised units had been spoiled and required disposal. The incident has prompted investigations by French prosecutors and cybersecurity agencies.

Why it matters

This attack demonstrates the expanding scope of cyber threats to include critical infrastructure systems that maintain public health and safety. The targeting of food refrigeration systems reveals vulnerabilities in supply chain infrastructure that could have broader implications for food security.

Context

The incident contributes to growing concerns about the security of industrial control systems and Internet of Things (IoT) devices in commercial settings. It follows similar attacks on utilities and manufacturing facilities, highlighting the need for specialized cybersecurity approaches for operational technology environments.