French supermarket refrigeration attacks spoil food as CERT-FR urges controller isolation

October 13 update separates disruption from spoiled stock

Attackers interfered with supermarket refrigeration controls in France during the night of October 11-12, causing defrosting and food spoilage. Intermarché, Coopérative U and E.Leclerc separately confirmed impacts to AFP. BleepingComputer also obtained its own Intermarché statement confirming removal of affected fresh and frozen products. CERT-FR’s October 12 alert, CERTFR-2026-ALE-012, confirms numerous compromises involving Danfoss AK-SM and AK-SC controller families. [1][2][3]

The most important October 13 clarification concerns Coopérative U. Chief executive Dominique Schelcher told RTL that 80 of its 2,000 stores were affected, but only a minority lost merchandise. Most stores and their refrigeration contractors intervened before the cold chain failed. AFP’s earlier account had described more than 100 U outlets as targeted. These reports use different measures: being targeted, suffering disruption and losing refrigerated stock are not interchangeable outcomes. [2][4]

Store counts and financial losses remain unsettled

The reported Intermarché/Netto footprint is also inconsistent. Reuters gave approximately 150 stores, while AFP reported at least 300 across Intermarché and Netto; the reports do not reconcile those figures. Reuters separately obtained retailer figures of 80 Carrefour supermarkets and approximately 5% of Monoprix’s 490 French stores. These are company-reported counts, not a consolidated official census of victims. [2]