U.S. agencies warn of cyber threat to grocery and cold-storage refrigeration systems

Federal agencies warned that hackers were targeting vulnerabilities in internet-accessible refrigeration controllers at grocery and cold-storage facilities. Exploitation could change temperatures and possibly cause fire hazards or inventory losses. Operators were urged to remove devices from the public internet, separate them from corporate networks and apply updates. The warning follows reported European freezer hacks and U.S. military-base refrigeration malfunctions that investigators reportedly treat as a cyberattack.