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Supermarket hack sounds alarm on cyber risks

Linkedin • October 14, 2026

Hackers targeted some of France’s largest supermarket chains in an “unprecedented” cyber attack that triggered fires and spoiled mountains of food.

The cyber criminals forced the temperature of the fridges up to 50C on Sunday night, disabling refrigerators in hundreds of shops.

BFMTV said hackers had “managed to remotely trigger the forced defrosting of the refrigeration systems in numerous stores”, leading to “the destruction of stocks of fresh and frozen products”.

At least 300 shops of Intermarché or its Netto brand had been targeted, along with over 100 Cooperative U outlets, and several E Leclerc stores, the retailers said in separate statements.

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Cyberattack on French Supermarkets Spoils Food Supply Chain On October 11, 2026, hackers targeted refrigeration controllers in over 300 French supermarkets, pushing temperatures to 50°C and causing large food spoilage. The attack affected major chains including Intermarché, Cooperative U, and E.Leclerc, leading to losses estimated in the tens of millions of euros. The attackers exploited outdated Danfoss refrigeration controllers, many of which lacked necessary firmware updates. French cyber authorities have warned that similar vulnerabilities exist in other countries, including Spain and Germany. No group has claimed responsibility, and the exact method of entry remains unconfirmed. Experts emphasize the need for improved security measures, including removing direct internet access and updating old hardware. 3 sources 58

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Supermarket hack sounds alarm on cyber risks

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