US agencies including the FBI and CISA warn that malicious cyber actors are actively targeting internet-connected industrial refrigeration and cold-chain monitoring systems worldwide. Officials say the attacks could enable hackers to change refrigeration temperatures and trigger physical impacts such as fire hazards, loss of inventory, and reduced equipment service life.

The warning covers organizations that rely on cold storage, including refrigeration controllers used in retail grocery as well as facilities supporting healthcare, agriculture and other industries. Several outlets note the guidance follows attacks reported in Europe, while the US statement urges operators to treat such systems as potential targets and to take mitigating actions.

Coverage differs mainly in emphasis: some reports focus on the global threat and potential consequences for food supply and equipment safety, while others highlight the US government framing of an “ongoing” threat and the role of specific authorities. One outlet explicitly points to practical steps such as applying software updates and restricting devices from the public internet.