unit42 Nov 6, 2026 · Crawled Nov 7, 2026

Turning Up the Heat: Inside the Attacks on Europe’s Refrigeration System

2 Actors

AI Summary

Unidentified threat actors conducted cyberattacks on refrigeration systems across Europe starting in October 2026, targeting at least 700 supermarkets in France and later expanding to over 10 additional countries, impacting over 100 retail locations. The attackers manipulated refrigeration controllers to enter defrost mode, raising temperatures to as high as 50°C, leading to food spoilage and in some cases, fires. French medical facility refrigeration systems were also affected, though no blood product spoilage was confirmed. Initial access may have exploited default credentials or vulnerable software, and pro-Russian hacktivist groups NoName057(16) and Z-Pentest claimed responsibility, though unverified. CISA issued an advisory warning of exploitation via authentication bypass, arbitrary code injection, and weak configurations.

AI-extracted · verify before operational use

Extracted Entities 2 found

Threat Actor NoName057(16) → Threat Actor Z-Pentest Alliance →

MITRE ATT&CK TTPs 3 techniques

T1078 Valid Accounts · Defense Evasion T1133 External Remote Services · Persistence T1203 Exploitation for Client Execution · Execution