Cyberattack Disrupts French Supermarket Refrigeration Systems

• •Hackers raised temperatures in refrigeration units, spoiling food across 400-700 stores.
• •Vulnerabilities in outdated controllers from Danfoss and Dixell were exploited.
• •French authorities are investigating, but no group has claimed responsibility.

On October 12, 2026, hackers targeted refrigeration systems in French supermarkets, causing temperatures to rise to 50°C (122°F) and spoiling millions of euros worth of food. Major chains affected included Carrefour, Monoprix, and Intermarché, with estimates suggesting that between 400 to 700 stores were impacted. The attack exploited known vulnerabilities in outdated refrigeration controllers from Danfoss and Dixell, which had not received security updates. French authorities have launched an investigation, and the incident has raised alarms about food security and the need for better cybersecurity practices in the retail sector. No group has claimed responsibility for the attack, and it remains unclear if the incidents are linked to previous attacks on U.S. military commissaries. The incident highlights the risks associated with legacy systems in critical infrastructure.