Cyberattacks on Sunday night targeted Danfoss-managed refrigeration systems across hundreds of French supermarkets, heating them to 50°C for roughly six hours
Hundreds of supermarkets in France were hit by cyberattacks on Sunday night that disabled refrigeration systems and forced stores …
Context & Ripple Effects
The attack sits in a long-running shift from digital compromise to physical disruption: a connected refrigerator was used in a malicious attack in 2014, while a 2021 report found that flaws in building-control systems could enable attackers to alter commands or deploy ransomware. The Danfoss incident demonstrates the operational stakes when those controls run supermarket cold chains.
The disruption also follows documented attacks on industrial controls, including internet-exposed water-system PLCs in 2026. For retailers, vendor-managed refrigeration is not merely an IT dependency when loss of control can damage inventory and interrupt store operations.
First-order effects
- French supermarkets using the affected Danfoss-managed systems face damaged food inventory and store disruption after refrigeration was disabled for roughly six hours.
- Danfoss and its retail customers must investigate how access to the refrigeration controls was compromised and restore safe operation across the affected estate.
Second-order effects
- Retailers that rely on remotely managed cold-chain equipment face pressure to review vendor access, network separation and manual operating procedures rather than treating refrigeration as a back-office technology service.
- Building-control suppliers face closer scrutiny from food retailers because the same command layer can determine whether perishable inventory is preserved or lost, a risk foreshadowed by the building-control flaw capable of altering commands.
Third-order effects
- The episode points toward operational-technology security becoming a procurement and resilience requirement for retail infrastructure, alongside price, maintenance and energy performance.
- If attacks keep reaching connected physical systems, responsibility will increasingly be shared across equipment vendors, managed-service providers and operators rather than contained within corporate IT teams.
The trend: Cybersecurity risk is moving from data and uptime losses toward direct disruption of physical services operated through connected control systems.
Related: Cyberattacks · Danfoss · Connected refrigerator used in a malicious attack · Building-control system security flaw
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Discussion
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@schelcher
Dominique Schelcher
on x
[Translated] I confirm that a cyberattack has been affecting, since last night, the cold production facilities of several stores in our network @CooperativeU . Our teams are fully mobilized, in coordination with refrigeration specialists, to restore the situation as quickly as p…
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@intcyberdigest
@intcyberdigest
on x
‼️ BREAKING: Fires broke out after hackers hacked fridges of hundreds of French supermarkets and forced Danfoss controllers to defrost at up to 50°C. Intermarché counts up to 200 stores, Coopérative U fewer than 100. Paris prosecutors opened a probe.
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@postoctobrist
@postoctobrist
on x
A dispatch from The Treats War
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@porkchop_exp
@porkchop_exp
on x
I've earlier today made a joke about Dutch largest supermarket chain's online system being down since last night as connected to Russian datacenters, but there might be an actual Russian connection. I'm now reading that the Belgian chain Delhaize has also been affected, and the F…
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@insidergeo
@insidergeo
on x
NEW: 🇳🇱 A cybersecurity incident has now disrupted Dutch supermarket giant Albert Heijn, following a major cyberattack affecting supermarket refrigeration systems in France. Albert Heijn, along with Etos and Gall & Gall, has experienced significant IT disruptions since Sunday aft…
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@the_irascible
@the_irascible
on x
Food is always a primary weapon in 5th Gen Warfare. France is under a sever attack on many fronts as Macron loses his globalist command.
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@intcyberdigest
@intcyberdigest
on x
Regarding the Danfoss refrigeration systems hacked in France: The username is ‘admin’, and the password automatically changes every day to... the current date. Yes, today's date. The French supermarkets affected in today's attacks had exposed all its refrigeration controllers dir…
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@donshift3
@donshift3
on x
World War 3 is gonna look really bizarre on the homefront.
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@skepticalwaves
@skepticalwaves
on x
NOT EVERYTHING SHOULD BE NETWORKED AMD SMART https://www.tomshardware.com/ ...
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@ihopeiamanalien
@ihopeiamanalien
on x
Hackers turned up the temperature in the refrigerators in some French grocery stores, causing them to have to throw out a lot of food. At least 400ish were targeted, but I'm not sure how many were successful attacks. Some even caused fires. [embedded post]
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@bluewall
@bluewall
on x
For those outside France: attackers remotely forced continuous defrost cycles on supermarket fridges (setpoints up to 50 °C) across ~150+ Intermarché, U and Leclerc stores. Changes started around midnight. Staff found the damage in the morning.
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@jayinkyiv
@jayinkyiv
on x
Russia has just taken down a key sector of France's energy grid and it's barely news. Meanwhile, two pro-Russian parties are competing to control the French government next summer.
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@intcyberdigest
@intcyberdigest
on x
‼️ Danfoss says most French supermarket fridges hacked to 50°C were legacy units that no longer get security updates. In August, Claroty found Danfoss AK-SM 800A controllers accept a password made from the date, and counted 2,765 exposed online. Which flaw was used is unknown.
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@intcyberdigest
@intcyberdigest
on x
‼️ UPDATE: France's supermarket fridge hack is bigger than first reported. Carrefour says 80 of its stores were hit, on top of 300+ at Intermarché and Netto. France's cyber agency ANSSI found a flaw in Danfoss software, a PM aide says. France fears other EU states may be hit.
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@jurgen_nauditt
Jürgen Nauditt
on x
Russia may have used hackers to attack hundreds of supermarkets in France, the Netherlands, and Belgium. Investigations are underway. Russia could be behind such a cyberattack, but at this stage, it would be premature to attribute the attack to Russia or Russian state actors. The…
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@davegreenidge57
@davegreenidge57
on x
I would suspect that almost all modern appliances with WiFi connectivity are susceptible to this. And your car, too.
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@insidergeo
@insidergeo
on x
BREAKING: 🇫🇷 A major cyberattack has hit supermarket refrigeration systems across France, reportedly causing fresh and frozen food to spoil after hackers remotely manipulated temperature controls. According to BFMTV, the attack began overnight from Sunday into Monday, targeting o…
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@kochalka
James Kochalka Superstar
on bluesky
refrigerators should not be connected to the internet. Just on principle, but also it's a national security issue.
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@eruditorumpress.com
Elizabeth Sandifer
on bluesky
The same bozos who thought putting refrigerators on the Internet was a good idea are now trying to sell you on AI assistants.
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@acidrains
Stephanie Rains
on bluesky
If the Intermarché chain would like to pay me a large consultancy fee, I'd advise them don't put your fridges on the internet 😁 my fridge is immune to cyberattacks because it's 100% offline and I really don't see why a supermarket's fridges should be different 🤷♀️ [embedded post…
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r/technology
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Hackers heat French supermarket fridges, sparking fires and spoiling food
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r/stupidpol
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Cyberattack cripples supermarket fridges across Europe as hackers activate automatic defrosting
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r/worldnews
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Fridges in French supermarkets hit by cyber attack
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r/europe
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‘Unprecedented’ Cyberattack cripples supermarket fridges across Europe as hackers activate automatic defrosting — delivery and store prices also impacted by incident
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r/nottheonion
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on reddit
‘Unprecedented’ Cyberattack cripples supermarket fridges across Europe as hackers activate automatic defrosting — delivery and store prices also impacted by incident
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r/PrepperIntel
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on reddit
Cyber attack on supermarket refrigeration in France
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r/UKPreppers
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on reddit
Cyber attack on supermarket refrigeration in France
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@clnz
@clnz
on bluesky
A glimpse of how dangerous our dependence on connected tech can be. A cyberattack on hundreds of French supermarkets overheated freezers, destroyed tons of food, triggered sprinklers, flooded stores and caused fires. — We're racing to put AI into everything without fully weigh…