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Why Europe’s supermarket fridges were easy targets
A second cyberattack in three weeks targeted supermarket refrigeration systems in Europe, allowing attackers to raise fridge temperatures and forcing retailers to discard spoiled food. The incidents have raised concerns about food security and exposed risks in systems that can be accessed remotely.
Retailers affected include Carrefour and Delhaize in Belgium, and ICA and Coop in Sweden; three French blood banks were also hit. Authorities have not identified the perpetrators or disclosed how they gained access, but cybersecurity researcher Laurens Singier said exposed internet connections, unchanged default passwords and outdated software can leave industrial devices vulnerable. He advised retailers to review connections, strengthen passwords and consider more secure alternatives such as SIM-based systems.
In short
- Supermarket fridges were targeted in a second cyberattack in three weeks.
- Spoiled food had to be discarded at affected retailers.
- Exposed connections and weak passwords may have enabled access.
Explained simply
Supermarkets use industrial refrigeration systems to keep food at safe temperatures across large stores and storage sites. Many can be monitored or controlled remotely, which helps staff manage equipment but also creates connections that need to be secured.
Retailers such as Carrefour, Delhaize, ICA and Coop operate across several European countries, while blood banks also rely on refrigeration to store supplies. Weak passwords, old software or poorly secured internet connections can make connected equipment easier to access without permission. Disruptions can lead to wasted food and raise wider questions about the security of essential services.