Skip to content
Cyberattack on French Supermarkets Disrupts Refrigeration Systems

Cyberattack on French Supermarkets Disrupts Refrigeration Systems

First seen 16 Oct 2026, 13:38 UTC • •
API

Article Content

Browse articles
ThreatCluster AI
ThreatCluster •October 16, 2026 at 13:39 UTC
  • •Hackers raised supermarket fridge temperatures to 50 degrees Celsius, causing food spoilage.
  • •The attack affected hundreds of stores across major French retailers, leading to significant financial losses.
  • •ANSSI is investigating the incident, highlighting vulnerabilities in legacy refrigeration systems.

A cyberattack on French supermarket refrigeration systems occurred from October 11 to 12, 2026, affecting hundreds of stores. Attackers manipulated temperature controls, raising temperatures to 50 degrees Celsius (122 degrees Fahrenheit), resulting in mass food waste and even fires. The incident impacted around 300 Intermarché and Netto stores, 80 Carrefour locations, and several others, causing losses estimated in the millions of euros. The attack exploited vulnerabilities in refrigeration control software from Danfoss, particularly targeting obsolete units that lacked security updates. France's National Cybersecurity Agency (ANSSI) is investigating the incident, which has raised concerns about the security of internet-connected refrigeration systems. Retailers have since disconnected affected systems from the internet to mitigate further risks.

Start a free Starter trial for enhanced analysis

Ask AI about this cluster

Updated 2h ago How this analysis works

Timeline

2026-10-11
Cyberattack on French supermarkets begins
Hackers manipulate refrigeration systems, raising temperatures to 50 degrees Celsius, affecting multiple retailers.
Yahoo
2026-10-12
Attack confirmed by authorities
Paris prosecutor's office describes the incident as a large-scale cyberattack affecting several major food retailers.
Yahoo
2026-10-16
Investigation launched by ANSSI
French Prime Minister orders ANSSI to investigate the cyberattack on supermarket refrigeration systems.
Yahoo

More articles in this cluster (2)

Following this threat?

Track Ahold Delhaize in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.

Free account · no card needed

Extracted Entities (20)

1 / 2

Common questions

Which supermarket chains were affected?
The attack impacted Intermarché, Netto, Carrefour, Coopérative U, and Monoprix, among others.
What vulnerabilities were exploited?
The attack exploited vulnerabilities in refrigeration control software from Danfoss, particularly in outdated units.
What actions are being taken to prevent further attacks?
Affected supermarkets have disconnected refrigeration systems from the internet and are investigating security measures.