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Europe: cybersecurity of refrigeration systems

This dossier follows cyber incidents affecting European retailers’ refrigeration systems, operational impacts and established responsibility.

Last updated : 1 key moments
A Carrefour Market in Peyrehorade in July 2025.
Archive in France; this store is not identified as affected. MathildePVD, CC0; resized. — MathildePVD / Wikimedia Commons — CC0 https://creativecommons.org/publicdomain/zero/1.0/ ; Peyrehorade, France, 1 juillet 2025, redimensionnement.

Where things stand

On 2 November 2026, retailers report incidents in Belgium and Sweden. Carrefour Belgium says 15 stores are slightly affected without network closures. Responsibility for the attacks remains unknown.

Reported information

Cyber incidents disrupt refrigeration at European supermarkets

Belgian and Swedish supermarkets reported abnormal temperature increases in refrigeration equipment on 2 November 2026 amid suspected cyberattacks. Food had to be discarded, AFP reports.

A Carrefour Market in Peyrehorade in July 2025.
Archive in France; this store is not identified as affected. MathildePVD, CC0; resized. — MathildePVD / Wikimedia Commons — CC0 https://creativecommons.org/publicdomain/zero/1.0/ ; Peyrehorade, France, 1 juillet 2025, redimensionnement.

Carrefour Belgium says 15 of its more than 700 stores are slightly affected, with no hypermarkets involved. The chain says all its stores remain open and products are still available.

Delhaize also reported an IT incident affecting refrigeration systems. Impacts therefore vary between retailers; no consolidated loss total is established here. Responsibility for the attacks and any technical link between the incidents are not demonstrated by the reviewed sources.

Sources 3