US Agencies Warn of Cyberattacks Targeting Refrigeration Systems

• •US agencies warn of cyberattacks on refrigeration systems in critical sectors.
• •Recent attacks in Europe caused significant food spoilage and potential hazards.
• •Organizations are urged to secure systems by removing internet access and enforcing strong authentication.

US government agencies, including CISA and the FBI, have issued warnings about cyberattacks targeting refrigeration and cold chain monitoring systems in critical sectors like healthcare and food supply. Recent attacks in Europe involved hackers remotely altering temperature settings in refrigeration units, leading to significant food spoilage and potential hazards. Hundreds of supermarkets in France experienced temperature increases to 50°C (122°F), resulting in millions in losses. The attacks reportedly exploited vulnerabilities in internet-accessible controllers, with default credentials being a common attack vector. While Russian hacktivist groups have been implicated, the exact source remains unconfirmed. Organizations are advised to secure their systems by removing internet access and enforcing strong authentication measures. As of November 5, 2026, many exposed refrigeration controllers have been taken offline, but vulnerabilities remain. The situation underscores the urgent need for enhanced security in operational technology (OT) environments.