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European supermarket freezers reset in second cyberattack wave

6 sources · 7 articlesFirst reported Updated ()
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First merged summary.

Merged summary · x-ai/grok-4.7 · rewritten as coverage arrivesSummaries by Vani AI

A second wave of suspected cyberattacks reset supermarket freezers across Europe to about 50°C, forcing stores to discard food.

Overnight around 1–2 November 2026, attackers remotely changed supermarket refrigeration settings across Europe, forcing defrost mode or about 50°C and spoiling food. Country counts conflict: Infosecurity Magazine lists nine, Cyber Security News lists 10 including Germany, and SentinelLABS lists six. Danfoss equipment was linked in multiple cases, and The Hacker News says some systems still used default passwords. No group has claimed the attacks; SentinelLABS calls Russian-aligned groups credible suspects while saying attribution remains open. The wave follows October attacks on French stores. ENISA, and on 5 November CISA and the FBI, urged operators to secure industrial refrigeration.

Key facts
  • Units were switched to defrost or set to about 50°C.
  • Infosecurity Magazine lists nine countries; Cyber Security News counts 10, adding Germany.
  • SuperValu removed chilled and frozen products from 13 Irish stores.
  • Several dozen Delhaize stores in Belgium were affected.
  • October 11 French supermarket systems were reportedly set as high as 50°C.
  • CISA and the FBI said on November 5 they were aware of worldwide activity.
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Timeline

dated events in the reporting · oldest first
  1. Oct 11, 2026French Danfoss supermarket systems reportedly set as high as 50°C · Infosecurity Magazine
  2. Nov 1, 2026Similar refrigeration event reported across at least nine countries · Infosecurity Magazine
  3. Nov 2, 2026Attackers changed refrigeration settings overnight in multiple countries · The Hacker News
  4. Nov 3, 2026Chains in six countries reported overnight refrigeration disruption · SentinelLABS
  5. Nov 5, 2026CISA, FBI and other US agencies warned of malicious activity · Infosecurity Magazine
  6. Nov 6, 2026ENISA warned after attacks on French commercial refrigeration · Security Affairs

What each outlet adds

beyond the shared facts
  • The Hacker NewsDanfoss targeted; default passwords; CERT-FR operator guidance
  • Infosecurity MagazineNine-country list, SuperValu’s 13 stores, EU commissioner
  • SentinelLABSSix countries; names Russian-aligned suspects; attribution open
  • Cyber Security NewsCounts 10 countries, including Germany
  • Security AffairsENISA response; Intermarché, Netto and Coopérative U
Vendors
DanfossCopelandDixellCoolworld
Products
refrigeration systemsDanfoss refrigeration controllersStoreViewXWEBrefrigeration controllersrefrigeration controls
Threat actors
CARRNoName057(16)Z-Pentest
Victims
SuperValuICA SwedenIkeaIntermarchéNettoCoopérative UEFSsupermarket retailerssupermarket chains in BelgiumLuxembourgNetherlandsSweden
Organizations
NCSCEUCISAFBICensys
Countries
BelgiumEstoniaFinlandIrelandItalyLuxembourgNetherlandsPortugalSwedenUnited KingdomFranceUnited States

Coverage

oldest first · one row per article · UTC
  1. · 6d ago DataBreaches.netFirst report

    Supermarket freezers across Europe hit by second suspected cyber-attack

    Chains in Sweden, Belgium and Luxembourg report fridge temperatures rising overnight from suspected cyber-attacks.

  2. · 6d ago The Hacker News

    Refrigeration cyberattacks hit European supermarkets

    Attackers remotely altered fridges and freezers in supermarkets across Belgium, Sweden and Estonia, forcing stores to discard spoiled food.

  3. · 6d ago Infosecurity Magazine

    Cyber-attack disrupts refrigeration in European supermarkets

    Nine European countries hit as hackers set fridges to 50°C, destroying food stock.

  4. · 6d ago SentinelLABS

    Store fridges and freezers disrupted in six European countries

    Supermarket refrigeration systems disrupted overnight in six European countries on November 2-3, with Russian-aligned groups suspected but attribution open.

  5. · 6d ago Cyber Security News

    Hackers Target Supermarket Refrigeration Systems Across Europe

    Attackers raised refrigerator temperatures to 50°C in stores across 10 European countries disrupting food supplies.

  6. · 3d ago Security Affairs

    ENISA Warns of Cyberattacks on European Refrigeration Systems

    Attacks on French supermarket refrigeration destroyed food stocks using Danfoss controllers.

  7. · 3d ago Infosecurity Magazine

    CISA and FBI warn of attacks on industrial refrigeration systems

    European incidents drove cold rooms as high as 110°C, and no threat actor has been named.