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Attackers Heat French Supermarket Fridges Up to 50°C by Hijacking Danfoss Controllers

Published

13 October 2026

Topic

technology

◆ Sectors

Retail Tech

◆ Geography

France

◆ Source

Read at thehackernews.com →

◆ Verified

Fusion42 · 13 October 2026 · Fusion42 review

Attackers remotely hijacked Danfoss refrigeration controllers across hundreds of French supermarkets, heating fridges to 50°C and causing significant food spoilage and financial losses. The affected controllers were mostly older Danfoss models no longer receiving security updates, leading French cybersecurity authorities to advise disconnecting or tightly filtering access to these devices.

This Wire brief sits within Fusion42's coverage of Retail Tech.

◆ ◆ The Wire takeaway

You must urgently audit and isolate IoT refrigeration controls to prevent hostile takeover. The attack shows older devices without security updates are now a costly liability for food retailers and providers.

◆ Coverage

1 source · 13 Oct 2026

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◆ Topics

Retail Techcyberattackiot-securitysupermarketsfood-spoilagedanfoss