Initial analyses suggest attackers may have harvested control-system logins exposed to the internet; the attacks are described as not highly sophisticated but highly disruptive.

Spokespeople and technical providers, such as Sarah De Meester and Sabcobel, are cited as sources for the information.

Danfoss acknowledged many affected devices are older models lacking ongoing software updates, creating vulnerability due to outdated technology.

While no formal attribution is given, the incidents fit a broader pattern of cyber threats targeting retail supply chains.

The report notes supervisory and investigative context, with coverage under Handelsblatt’s editorial standards.

Germany’s BSI warned that such attacks could affect any country and highlighted risk to smaller networked installations, signaling imitator potential.

A new wave of cyberattacks hit European supermarket refrigeration systems, with incidents spanning Belgium, Luxembourg, Sweden, and an Estonian chain, causing temperature spikes in several stores.

Retailers including ICA and Coop reported affected locations and are cooperating with investigations; Coop noted six central Sweden stores were impacted, while ICA said it was assisting involved sites.

Carrefour Belgium said the impact was very limited, affecting around 15 of its 700 stores, and emphasized rapid containment to keep shops operating; Delhaize reported IT measures were taken to maintain operations.

Analysts warn that attackers’ true motives remain unclear and urge vigilance across critical infrastructure sectors to prevent broader disruption.

Authorities and companies have not disclosed full breach scope or methods beyond remote defrost-mode manipulation, indicating an ongoing investigation.

Experts flag the broader risk of remote-control capabilities for household devices and tie this to hybrid cyber threats amid geopolitical tensions, including Russia.