Cyberattacks on refrigeration controllers threaten European cold chains

Cyberattacks on refrigeration controllers have already wiped out millions of euros in European supermarket stock, exposing a critical vulnerability for 3PL operators and pharma shippers using identical systems. The breach of Danfoss AK-SM controllers proves that internet-facing cold chain infrastructure is an active target for state-sponsored disruption.

Two waves of attacks recently targeted supermarket refrigeration controllers across Europe, resulting in millions of euros in losses. The attackers accessed vulnerable Danfoss AK-SM refrigeration controllers through their internet-facing management interfaces.

The method was simple. Hackers bypassed authentication using a password calculated directly from the management interface. France has officially blamed Iran for these cyberattacks.

Thousands of these controllers remain accessible from the open internet. Beyond supermarkets, these same systems protect pharmaceutical warehouses, 3PL cold stores, and blood banks.

Why it matters

Maritime professionals moving high-value temperature-controlled cargo rely on 3PL cold stores that use these exact Danfoss systems. A breach at a port-side cold store or a regional distribution center does more than spoil cargo. It breaks the chain of custody for sensitive goods like blood banks and medicines, rendering entire shipments worthless even if the cooling is later restored.

The simplicity of the attack is the primary concern for insurers and charterers. Using a calculated password to bypass authentication on an internet-facing device suggests that basic security hygiene is missing from many cold chain nodes. This represents a massive, unmitigated risk in the intermediate storage phases of a global supply chain.

The geopolitical element elevates this from simple ransom-seeking to strategic sabotage. With France naming Iran as the perpetrator, cold chain infrastructure is now a front in broader hybrid warfare. Shipowners and cargo interests must recognize that their shore-side partners’ digital vulnerabilities can lead to total cargo loss before the goods reach the end consumer.

What to watch

The security status of the thousands of refrigeration controllers that remain accessible from the open internet and vulnerable to the same authentication bypass.

Source: The Loadstar