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Hackers activate automatic defrosting accross European supermarket fridges

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Hacker News | Oct 12, 2026 | Zeekaas

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An ongoing cyberattack has reportedly struck major supermarket chains across Europe, disrupting refrigeration control systems. The attack — which has reportedly seen units set to continuously defrost at 50 degrees Celsius — is also apparently affecting deliveries and in-store pricing powered by electronic shelf labels, La Dépêche reports. According to the report, "several" major retailers have been targeted by a cyberattack, which has hit Danfoss-made refrigeration controls used by French supermarkets Intermarché, Leclerc, and Coopérative U.

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