Delhaize and Other Retailers Hit by Cooling System Hack

Supermarkets across Belgium, including Delhaize, Carrefour, and Spar, are dealing with the impact of a cyberattack that targeted remote cooling and freezer systems. As of November 2, 2026, the incident has forced retailers to implement strict food safety protocols to ensure products remain safe for consumption.

Why it is trending now

The trend stems from a coordinated cyberattack on industrial cooling control systems. Hackers gained unauthorized access to management accounts, allowing them to manipulate temperatures in refrigeration units across multiple European countries. The disruption has left many customers facing closed doors or restricted access to refrigerated sections as stores conduct necessary safety inspections.

Key facts

• According to HLN, the attack also impacted other businesses in Belgium, including an Ikea location and a butchery group.
• The Belgian Federal Agency for the Safety of the Food Chain (FAVV) has mandated that stores must verify the temperature of products using infrared or core thermometers.
• For sensitive products like fish or meat, the maximum temperature allowed is 5 degrees Celsius, while general refrigerated goods must stay below 7 degrees, per FAVV guidelines.
• Frozen products must maintain a minimum temperature of -18 degrees Celsius, and any stock exceeding these limits must be removed from sale, according to FAVV spokesperson Hélène Bonte.
• International reports indicate similar attacks occurred in the Netherlands, Sweden, Estonia, Ireland, and Luxembourg.

Why this is trending in Belgium

The incident is highly visible in Belgium because it directly affects the daily operations of major supermarket chains that residents rely on for food. The widespread nature of the disruption, impacting not just Delhaize but multiple major retailers, has led to significant public concern regarding food quality and store availability.

Background and context

Supermarket cooling systems are often managed remotely via centralized IT platforms. When these systems are compromised, attackers can override temperature settings, causing rapid fluctuations that can spoil perishable goods. This incident follows a pattern of digital infrastructure attacks reported across Europe, with cooling systems in the Netherlands also experiencing unauthorized temperature adjustments at roughly seventeen businesses.

What happens next

Retailers are currently performing manual checks on all refrigeration and freezer units to comply with safety regulations. Any products where temperature thresholds were breached during the hack will be withdrawn from store shelves. Customers may experience temporary product shortages or restricted access to specific aisles until these safety verifications are completed.