Attackers Heat French Supermarket Fridges Up to 50°C by Hijacking Danfoss Controllers

Attackers took remote control of fridges and freezers at hundreds of French supermarkets on the night of October 11 and warmed them, forcing stores to throw food away, several retail chains said. The attackers reached them through the controller that runs all of a store's fridges and freezers, a device made by Danish company Danfoss that maintenance firms can manage remotely. Les Mousquetaires

The report describes attackers remotely manipulating Danfoss refrigeration controllers at hundreds of French supermarkets, forcing defrost cycles and temperatures of up to 50°C, which spoiled food. The affected systems reportedly included obsolete or unupdated controller software managed remotely by maintenance firms.[2][3] This is an operational technology cyberattack, not an AI-specific incident; the AI supply chain classification is therefore limited and reflects third-party technology and software supply-chain exposure rather than confirmed AI involvement. RealGround analysis: assess supplier dependencies, firmware and asset inventories, remote-access controls, update governance, and incident-response procedures.