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IoT/OTNov 7, 2026

The Fridge-Hacking Spree Is an Internet-of-Things Wake-Up Call

Internet-connected refrigerators targeted in attacks across Europe and US military bases.

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Summary

A series of cyberattacks have targeted internet-connected refrigerators in France, impacting blood labs and grocery stores by raising temperatures. Similar incidents have also affected supermarkets across Europe and commissaries on US military bases, leading to significant food spoilage. While the perpetrators remain unclear, potential links to Russia or Iran are being investigated, and attackers are reportedly exploiting unpatched controllers with weak passwords.

The lesson from this incident

Full lesson

Attackers exploited internet-connected refrigeration controllers that were running outdated firmware and secured with weak or default passwords, causing temperature manipulation that spoiled food and compromised blood supplies. This incident highlights the dangerous real-world consequences when operational technology (OT) and IoT devices are treated as low-priority assets in security programs. The attack surface expands dramatically when critical infrastructure devices are internet-exposed without hardening. It matters not only because of financial losses but because compromised cold chain integrity can endanger lives — particularly in medical settings where temperature-sensitive blood products are stored.

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Danfoss (vendor)refrigerators (product)Russia-based actors (threat_actor)Iran-linked actors (threat_actor)Internet of Things (technology)