Brifing

Pentagon Investigates Suspected Cyberattacks on Military Base Refrigeration Systems

US officials probe freezer malfunctions linked to similar international commercial cooling system hacks.

Security Affairs2 min

1Pentagon Investigates Freezer Sabotage

The Pentagon is currently treating August freezer malfunctions at multiple US military bases as a suspected cyberattack. Four officials confirmed that military investigators are actively collaborating with French authorities. This investigation follows similar incidents where commercial freezer systems were compromised, causing significant food spoilage across various military commissary locations nationwide.

2Operational Impact on Commissaries

At least six military commissaries reported freezer failures during late August, with some estimates suggesting up to 14 sites across 11 states were affected. Bases including Fort Irwin, F.E. Warren, and Naval Station Newport experienced these outages. These stores serve as essential food supply points for military personnel and their families.

3Malicious Temperature Manipulation Tactics

In several documented instances, the cooling units did not simply lose power. Instead, attackers remotely triggered defrost modes or increased temperatures overnight, leading to total food loss. At Fort Huachuca, Arizona, the system heated up, resulting in spoiled inventory. This specific method mirrors techniques used in recent large-scale commercial cyberattacks.

4International Coordination with France

US investigators are in direct contact with French counterparts regarding a parallel attack on commercial supermarkets. In France, hackers gained control over 350 cooling units, raising temperatures so severely that some units caught fire. This cross-border cooperation highlights the escalating concern regarding the vulnerability of industrial refrigeration systems to remote exploitation.

5Cyber Command and Investigation Scope

A dedicated unit of US Cyber Command is working alongside government agencies and law enforcement to determine the source of the breaches. The Army’s Criminal Investigation Division has confirmed its Cyber Field Office is leading the inquiry. Authorities have not yet identified the perpetrators or the specific extent of the system compromise.

6Historical Precedents in Refrigeration Hacking

Refrigeration systems have faced previous security threats, including attacks on supermarkets in Russia and Israel during 2022. Additionally, US prosecutors charged a suspect in December 2025 for a 2024 incident at a meat plant where 2,000 pounds of food were ruined. These events underscore a growing pattern of targeting critical food infrastructure.

7Vulnerabilities in Cooling Controllers

Security experts have previously noted risks associated with outdated cooling controllers. While a public research report on Danfoss controllers existed prior to the incidents, no direct link to the military base breaches has been established. The manufacturer has not provided comments regarding the specific hardware vulnerabilities exploited during these recent widespread attacks.

8Strategic Implications for Food Security

The Global Food Safety Initiative recently urged IT and food safety leaders to integrate their defense strategies. These freezer failures demonstrate that physical assets are increasingly susceptible to digital threats. Protecting the integrity of the food supply chain now requires a more robust approach to securing industrial control systems against remote sabotage.

Original article: Security Affairs — Pentagon Investigates Suspected Cyberattacks on Military Base Refrigeration Systems