European businesses can now see how a cyberattack on operational technology can disrupt physical operations, damage stock and affect customer trust. According to Digital Trends, hackers remotely raised refrigeration temperatures at supermarkets across several European countries, causing spoiled food and millions of euros in losses.
What happened
Digital Trends reported that attackers remotely increased the temperature of supermarket fridges and freezers to 50 C, or 122 F. The affected locations included about 40 Delhaize stores in Belgium and Luxembourg, several ICA and Coop stores in Sweden, 13 SuperValu shops in Ireland, 15 Carrefour and five Spar stores in Belgium, plus stores in the Netherlands, Estonia and Finland.
One Delhaize store in Hoeilaart discarded food worth 100,000 euros, according to the report. French prosecutors are treating the earlier attack involving about 400 French supermarkets as a cybercrime case, and the Pentagon is reviewing refrigerator failures at several US military bases after hackers became a suspected factor.
Are you affected?
The reported incidents affected supermarket refrigeration systems operated by Delhaize, ICA, Coop, SuperValu, Carrefour, Spar, Intermarché, Coopérative U, Monoprix and E.Leclerc. Earlier attacks also targeted refrigeration software from Danfoss, which said the affected units were older machines that it could no longer patch against the threat.
The source does not list specific software versions, hardware models or settings for the European stores, and Danfoss did not provide a complete list of affected versions in the report. Businesses using unpatchable older refrigeration equipment should contact their equipment supplier or refrigeration-system provider to determine whether the systems fall within the described category.
What to do now
- Ask the refrigeration-system provider to review remote-access permissions and administrative accounts.
- Apply available security updates to refrigeration control software and supporting devices.
- Identify older equipment that the supplier says can no longer be patched against the threat and plan a replacement or isolation strategy.
- Use temperature monitoring and alerts to detect abnormal refrigeration conditions promptly.
- Protect critical operational systems with stronger cybersecurity controls, as experts cited by the source say stronger security and regular software updates could have prevented the attacks.
What the attack means for business visibility and trust
Refrigeration attacks show that cyber risk can extend from customer records and websites into physical inventory and business continuity. Supermarkets and food retailers must prevent spoilage, reduce waste and maintain service. The longer-term challenge is maintaining customer confidence when food handling depends on connected systems.
Operational incidents can affect how easily customers find businesses in search and AI results. Out-of-stock products, changing opening hours and inaccurate business listings can make a store harder to find and less useful to customers relying on search answers. Keeping the website, business profile and current operating information consistent helps customers locate available services during disruptions.
The source also cites EU Food Commissioner Christophe Hansen, who said that the weaponisation of food has become a reality. That statement reflects the broader significance of an attack that turns refrigeration equipment into a direct means of spoiling inventory and disrupting stores.
The incidents followed an earlier attack that affected around 400 French supermarkets. According to Digital Trends, Danfoss attributed the vulnerability in the earlier incidents to older machines that the company could no longer patch. The repeated targeting of supermarket refrigeration makes software maintenance and equipment lifecycle planning operational security priorities.
FAQ
Which supermarkets were affected by the European freezer attacks?
Digital Trends reported about 40 Delhaize stores in Belgium and Luxembourg, several ICA and Coop stores in Sweden, 13 SuperValu shops in Ireland, 15 Carrefour and five Spar stores in Belgium, and stores in the Netherlands, Estonia and Finland.
How high did the hackers raise the freezer temperatures?
The temperatures reached 50 C, or 122 F, according to Digital Trends.
How much food did one affected supermarket lose?
One Delhaize store in Hoeilaart discarded food worth 100,000 euros, according to the report.
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Sources
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