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Cyberattacks Hit Supermarket Freezers Across Europe for Second Time
Hackers have targeted refrigeration systems at supermarkets across Belgium, Luxembourg, Sweden, Estonia, and Ireland, raising freezer temperatures to 50°C and destroying food stocks. The second such coordinated attack in weeks has forced major retailers including Ahold Delhaize, ICA, and Coop to discard hundreds of thousands of euros worth of goods, reviving concerns about cybersecurity in the food supply chain.
Quick Facts
- Cyberattack on internet-connected refrigeration systems at multiple supermarket chains
- Hackers remotely raised freezer temperatures to approximately 50°C
- Hackers triggered or extended defrost cycles in affected units
- Hackers disabled alarm systems on some systems
- Food spoilage forced stores to discard chilled and frozen products
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Supermarket chains across Belgium, Luxembourg, Sweden, Estonia, and Ireland have reported coordinated cyberattacks on refrigeration systems, with hackers remotely raising freezer temperatures to approximately 50 degrees Celsius and triggering defrost cycles. The attacks occurred overnight on November 1–2, 2026, affecting dozens of stores operated by major retailers including Ahold Delhaize, ICA, Coop, Colruyt (Spar), and SuperValu. Stores were forced to discard significant quantities of chilled and frozen food, with some Belgian locations reporting losses exceeding €100,000.
The incidents echo a larger cyberattack in France in October 2026, when hackers gained control of refrigeration systems at up to 700 supermarkets, causing widespread food spoilage and fires. Security researchers attributed those attacks to compromised internet-connected controllers supplied by Danish company Danfoss. In both waves of attacks, hackers disabled alarm systems before remotely adjusting temperature settings and extending defrost cycles. Danfoss stated it had identified security flaws and recommended customer updates, though many systems remain vulnerable.
Affected retailers confirmed immediate response actions: technicians were mobilized to disconnect systems from the network, and cybersecurity specialists and equipment suppliers were engaged to investigate. Sweden's Coop reported six stores affected, while ICA confirmed a limited number of locations. In Belgium, Ahold Delhaize reported an IT incident at approximately 40 stores, and Colruyt reported five Spar outlets hit. Axfood in Sweden also reported a compromised distribution center for home deliveries. Carrefour Belgium stated only 15 of its stores were affected.
National cybersecurity agencies in Belgium and Sweden said they were monitoring the incidents. Authorities have not publicly identified who is responsible or confirmed whether the November attacks are directly connected to the October French incident, though the method and timing suggest a coordinated or copycat campaign. The attacks underscore the vulnerability of internet-connected infrastructure in food supply chains, with industry specialists calling for stronger security protocols and, in some cases, disconnecting systems from the internet entirely.
Topics
Why This Matters
Coordinated cyberattacks on food-supply refrigeration across five European countries have destroyed hundreds of thousands of euros in inventory and affected major retail chains including Ahold Delhaize, ICA, Coop, and Colruyt within a month. The second wave targets the same vulnerabilities identified after an October 2026 incident in France (affecting up to 700 locations), indicating either persistent unpatched systems or copycat campaigns. Retailers face immediate supply-chain disruption and inventory losses; suppliers of internet-connected controllers (notably Danfoss) face reputational and liability pressure. Unresolved attribution and the continued vulnerability of critical food-infrastructure equipment signal rising systemic risk in e-commerce and cold-chain operations.
Timeline & Sources
Jan 1, 2025
WireDanfoss identified security flaws in refrigeration controllers
Nov 1, 2026
WireCyberattack begins overnight on supermarket refrigeration systems in Belgium, Luxembourg, Sweden, Estonia, and Ireland
Nov 2, 2026
WireTechnicians mobilized in Belgium to disconnect affected refrigeration units from the network
Nov 2, 2026
WireReports emerge of cyberattack affecting supermarket chains in Belgium, Sweden, and Luxembourg; temperatures raised to approximately 50°C
Nov 2, 2026
WireReports confirm attacks have affected stores in Ireland and Estonia; national cybersecurity agencies begin monitoring
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Sources
- Supermarket freezers in Belgium and Sweden hit by suspected cyber-attackbbc.comMediaNov 2, 2026
- Supermarket freezers across Europe hit by second suspected cyber-attacktheguardian.comMediaNov 2, 2026
- A fresh wave of cyberattacks has hit Europe’s supermarket refrigerators, destroying food across countriestechcrunchMediaNov 2, 2026
- Refrigeration disruptions hit supermarkets across Europe amid cybersecurity concernsxinhuaMediaNov 2, 2026
- Supermarket freezers across Europe struck in second crippling cyberattack — hackers raise temperatures to 50 degrees Celsius in Belgium and Sweden, destroying food stockstomshardware.comMediaNov 2, 2026
- В Бельгии и Швеции хакеры снова взломали холодильники в супермаркетахMeduzaMediaNov 2, 2026
- В Бельгии, Люксембурге, Швеции и Эстонии хакеры нагрели холодильники в магазинахИнтерфаксMediaNov 2, 2026