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Hackers use cyberattack to heat supermarket refrigerators to 50°C

Gigazine • October 13, 2026

On October 12, 2026, it was revealed that numerous supermarkets in France had been subjected to cyberattacks, resulting in the forced raising of refrigerator temperatures. Reports indicate that the affected stores all shared the commonality of using refrigeration systems from the same company. French supermarkets suffer refrigerator shutdown after 'unprecedented' cyberattack | AFP.com

Danfoss stated, 'Our AK-SM800 and AK-SC355 series temperature control systems were particularly affected. Most of the affected equipment are older models, and software and security updates are no longer provided. We had previously recommended that supermarkets replace their equipment.' Danfoss systems were publicly identified as having an authentication bypass vulnerability ( CVE-2025-41450 ) in May 2025 and a command injection vulnerability ( CVE-2025-41451 ) in August 2025. The research team that discovered these two vulnerabilities also published a method for achieving remote code execution using a product called AK-SM800A. According to sources, French Prime Minister Sébastien Lecornu has instructed the French National Cyber Security Agency (ANSSI) to investigate the matter, and is coordinating with relevant agencies as the impact could extend to other countries.

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Oct 13, 2026 12:23:00 in Security , Posted by log1p_kr

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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 by Heating Refrigerators A significant cyberattack occurred on October 11-12, 2026, targeting refrigeration systems at over 300 French supermarkets, including Intermarché, Coopérative U, and E. Leclerc. Hackers manipulated the systems to raise temperatures to 50°C (122°F), leading to extensive food spoilage and fires. The attack exploited vulnerabilities in outdated Danfoss refrigeration controllers, specifically the AK-SM800 and AK-SC355 models, which had not received security updates. Paris prosecutors have opened an investigation into the incident, which has been described as unprecedented and extremely serious by industry leaders. Initial estimates suggest losses could reach tens of millions of euros across the affected chains. The attack has raised concerns about the security of operational technology in the food supply chain. 77 sources 70

Extracted Entities

Hackers use cyberattack to heat supermarket refrigerators to 50°C

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Extracted Entities

Companies (3)

Countries (5)

CVEs (2)

CWE Weaknesses (2)

Domains (1)

Platforms (1)