A cyberattack on refrigeration systems at hundreds of supermarkets in France has raised the temperature of fridges and freezers to as high as 50 degrees Celsius (122F), spoiling food and causing fires at several stores. Top retailers Intermarche, Cooperative U, E Leclerc and others confirmed the “unprecedented” cyberattack on Monday. At least 300 shops of Intermarche or its Netto brand were targeted, along with more than 100 Cooperative U outlets, the retailers told the news agency.
Carrefour said 80 supermarkets were affected, while Monoprix said about 5 percent of its roughly 490 stores were hit. E Leclerc said several of its stores were targeted. The Paris prosecutor’s office said the “large-scale” attack had affected “connected refrigerators in several major food retailers across France”.
It led to food losses and fires, the office said. The attack prompted Prime Minister Sebastien Lecornu to order France’s National Cybersecurity Agency (ANSSI) to investigate, a person in his office told the news agency. The source said France was coordinating with European counterparts because other countries could also be affected, adding that authorities were assessing whether other French companies were at risk.
There was no immediate estimate of industry-wide losses, but Intermarche CEO Thierry Cotillard told BFM TV the “unprecedented” attack would represent losses amounting to “tens of millions of euros nationwide in a single day”. According to BFM TV, the hackers had “managed to remotely trigger the forced defrosting of the refrigeration systems in numerous stores”. The action resulted in the “destruction of stocks of fresh and frozen products”, it said.
Intermarche told that affected stores would have to “throw away all of the products” that were fresh or frozen. Dominique Schelcher, chief executive of Cooperative U, said the attack had disrupted refrigeration systems since Sunday night. It is unacceptable,” he wrote on X.
He said the company’s teams were working to restore normal operations as quickly as possible, and that an investigation would be needed to “shed full light on this attack”. Supermarket cold aisles are typically run by control panels that manage an entire store’s fridges and freezers and can be accessed over the internet, which lets maintenance companies adjust them from anywhere. The source close to Lecornu said ANSSI had identified a vulnerability in software supplied by Danish company Danfoss.
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