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ColdRecon / Breach Radar / Intermarché and Coopérative U
Breach Record

Intermarché and Coopérative U

DISCLOSED 2026-10-13 · RANSOMWARE

Hundreds of Intermarché and Coopérative U stores in France were hit by a cyberattack that caused refrigerators to heat up to 50°C. The attack is described as unprecedented, and there are fears that Dutch chains may also be affected. No data theft or ransomware has been reported.

The record

What we know

Disclosed
2026-10-13
Attack vector
Ransomware
Sector
Retail
Country
France
ENDPOINT INVOLVED
ColdRecon assessment

Could a positive-security control have prevented this?

Verdict · unclear · opinion

The attack targeted refrigeration control systems, likely IoT or embedded devices, not standard endpoints. A positive-security model might have prevented unauthorized temperature changes if applied to those systems, but the text lacks details on how the attackers gained access.

Our assessments are opinion, grounded in the cited public facts. Read them critically.

Sources

Cited reporting

↗ www.theguardian.com
Similar vector · recent

Other ransomware breaches on file

IDC Frontier · 2026-10-13 Aon · 2026-10-13 MoneyGram · 2026-10-13 KFC · 2026-10-13 Advantest · 2026-10-13 French supermarkets · 2026-10-13 Advantest · 2026-10-12 DexCom · 2026-10-12

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