Five U.S. federal agencies have issued a joint warning about refrigeration cyberattacks, saying threat actors are targeting refrigeration controllers and electronic temperature controllers in retail grocery and cold storage facilities. The fact sheet, released on November 5, 2026, by CISA, the FBI, HHS, USDA and the Department of Transportation, says attackers can remotely alter settings and push units into continuous heating and defrost cycles.
Refrigeration Cyberattacks Draw FBI and CISA Warning
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