Pentagon suspects Cyber attack in military freezer failures

The Pentagon is looking into freezer failures at U.S. military bases in August 2026, treating them as a suspected cyber attack that spoiled food in commissaries across bases. At least six military commissaries suffered freezer failures in late August, which spoiled food supplies at bases including Fort Irwin, F.E. Warren, Naval Station Newport, Columbus, and Travis. Fort Huachuca in Arizona announced on Aug. 26, 2026, that a freezer switched to defrost mode, which heated and spoiled all food inside. This event resembled deliberate freezer overheating incidents in France.

French authorities confirmed that hackers targeted more than 350 commercial freezers in France earlier this month, raising temperatures and starting fires in some units. The incident disrupted supermarket operations. The French incident exploited refrigeration systems, much like the suspected U.S. military base incidents, with both cases involving unauthorized temperature control overrides. US Cyber Command and the Army’s Criminal Investigation Division are heading the U.S. investigation, working with French law enforcement in a partnership that follows a similar attack on French supermarket freezers.

Fort Huachuca officials described the spoilage bluntly, saying, “Trust us when we say it was spoiled.” The Signal and Silence blog initially reported the freezer breakdowns and potential sabotage on Aug. 28, 2026, with later coverage confirming military investigations and international coordination. Danfoss, a refrigeration manufacturer that hackers targeted in the French supermarket attacks, did not respond to inquiries about potential involvement in the U.S. incidents. No direct connection linking Danfoss controllers to the U.S. bases exists.

A 2022 report by Danfoss recorded hacking incidents that targeted cooling systems in Russia and Israel. These attacks exploited outdated cooling controllers. In December 2025, U.S. prosecutors filed charges against a Ukrainian woman linked to a hacking group that sabotaged refrigeration systems at a meat processing facility in 2024, which led to the loss of over 2,000 pounds of meat.

The Global Food Safety Initiative called for collaboration between food safety experts and IT leaders in 2026 to safeguard refrigeration systems from cyber threats. A 2021 DHS assessment highlighted refrigeration failures and shipping delays as cybersecurity risks that could cause food spoilage and shortages, while the Food and Agriculture Information Sharing and Analysis Center warned that attackers target internet-accessible industrial controls that have weak cybersecurity defenses, increasing risks of supply chain disruptions.

Ransomware cartels exploit the agri-food sector’s vulnerability to downtime by demanding payments to restore operations. A bipartisan Farm and Food Cybersecurity Act was reintroduced in 2025 to enhance federal safeguards for food and agriculture infrastructure, following earlier proposals introduced in 2024.