![Supermarket Freezer Hack Hits Belgium and Sweden](https://cdn.slatesource.com/f/9/4/f9459a3f-3826-4134-b86c-ade11668643c.webp) # Supermarket Freezer Hack Hits Belgium and Sweden - [Made in Slatesource](https://slatesource.com/@steph/supermarket-freezer-hack-hits-belgium-and-sweden) - By [Steph](https://slatesource.com/@steph) - Created on Nov 2, 2026 ## Stores hit overnight 1-2 November 2026 Country Chain Stores affected Peak temperature Belgium Delhaize ~40 ~45C Belgium Carrefour 15 ~45C Belgium Spar 5 ~45C Sweden ICA Several (2 closed) 55C Sweden Coop 7 ~50C Luxembourg Ahold Delhaize Multiple ~45C Ireland SuperValu (Musgrave) 13 ~50C (est.) Estonia Selver (Kitman Coldtech) 1 50C [nltimes.nl](https://nltimes.nl/2026/11/02/cyberattack-hits-delhaize-supermarket-fridges-freezers-dozens-belgium-locations?utm_source=slatesource) **55C** Peak temperature recorded in Swedish ICA freezers [trendingtopics.eu](https://www.trendingtopics.eu/hackers-crank-supermarket-freezers-in-sweden-and-belgium-up-to-55-degrees/?utm_source=slatesource) ## How the attack works The target is the Danfoss AK-SM 800 and AK-SC 355, controllers that manage a supermarket's entire refrigeration plant and are routinely accessed remotely by third-party maintenance firms. The AK-SM 800 reached end-of-life in 2016; the AK-SC 355 in 2021. Neither receives security updates. Both have a publicly accessible login with a default username of "admin" and use a "code of the day" derivable from the device's own date. Attackers exploit this to log in remotely, activate forced defrost cycles while food is still inside, and raise temperatures to 50-55C. Belgian refrigeration firm Sabcobel, which operates Delhaize's systems, confirmed to the Belga news agency that the defrost mode was remotely triggered. Cybersecurity firm Claroty had published a public warning about the flaw in August 2026. • Estimated 4,500 Danfoss controllers remain openly reachable on the internet across European supermarkets as of early November 2026. • The controllers also expose Copeland and Dixell units at s [nltimes.nl](https://nltimes.nl/2026/11/02/cyberattack-hits-delhaize-supermarket-fridges-freezers-dozens-belgium-locations?utm_source=slatesource) France attack (12 Oct) Up to 700 stores, tens of millions euros lost Belgium/Sweden attack (2 Nov) 70+ stores, millions of euros lost Controllers still exposed online ~4,500 across Europe Danfoss AK-SM 800 end-of-life 2016 Danfoss AK-SC 355 end-of-life 2021 [cbsnews.com](https://www.cbsnews.com/news/cyberattack-supermarkets-refrigerators-france-fires-food-losses/?utm_source=slatesource) European supermarket refrigeration attacks01.08.2026 – 02.11.2026 01.08.2026Claroty publishes public advisory on Danfoss AK-SM 800A flaw; estimates thousands of controllers still online 01.08.2026 12.10.2026France: hackers hit up to 700 stores (Intermarche, Leclerc, Coopérative U, Carrefour); fires at some sites; Paris prosecutors open investigation; ANSSI coordinates with European counterparts 12.10.2026 02.11.2026Belgium: ~60 Delhaize, Carrefour and Spar stores affected overnight; Sabcobel confirms remote defrost activation 02.11.2026 02.11.2026Sweden: ICA and Coop report 8-9 stores hit; ICA Boda records 55C; stores in Sjobo and Tomelilla close for the morning 02.11.2026 02.11.2026Luxembourg: Ahold Delhaize confirms refrigeration disruption at Luxembourg stores 02.11.2026 02.11.2026Ireland: SuperValu (Musgrave) confirms 13 stores affected by "cyber incident" on a specific refrigeration model; chilled and frozen food withdrawn; investigation opened with cybersecurity specialists 02.11.2026 02.11.2026Estonia: Selver confirms one outlet attacked; Kitman Coldtech CEO confirms older Danfoss controller exploited, temperature raised to 50C; response within 10-15 minutes prevented product damage 02.11.2026 [cbsnews.com](https://www.cbsnews.com/news/cyberattack-supermarkets-refrigerators-france-fires-food-losses/?utm_source=slatesource) ## What is known and what is not Known: the Danfoss flaw is real, documented, and has been publicly disclosed; attackers are exploiting remote access to trigger forced defrost; attacks confirmed in France, Belgium, Sweden, Luxembourg, Ireland, and Estonia; SuperValu (Musgrave) confirmed 13 Irish stores affected with food withdrawn; Selver confirmed one Estonian outlet attacked; Kitman Coldtech CEO confirmed older Danfoss controller exploited; ICA and Coop confirmed refrigeration failures; food worth millions of euros has been destroyed across Belgium and Sweden. Not yet known: who is behind the attacks; whether the two waves (France and now five more countries) are connected; whether further countries are next; whether Finland's K-Group reports (cited by Bloomberg and Helsinki Times) will be officially confirmed; whether any criminal group has claimed responsibility. [theguardian.com](https://www.theguardian.com/world/2026/nov/02/supermarket-freezers-across-europe-hit-by-second-suspected-cyber-attack?utm_source=slatesource) What happens next 33% France opens criminal investigation (Paris prosecutors, October 2026) ANSSI coordinating with EU counterparts after France attack ENISA or national CERTs expected to issue advisory on Danfoss units Danfoss patch available for AK-SM 800A (newer series); older AK-SM 800 and AK-SC 355 have no patch path Retailers taking affected units offline and replacing vulnerable controllers Belgian and Swedish police investigations expected to open [theguardian.com](https://www.theguardian.com/world/2026/nov/02/supermarket-freezers-across-europe-hit-by-second-suspected-cyber-attack?utm_source=slatesource) Sources: Ahold Delhaize statement and Sabcobel/Belga via NL Times (nltimes.nl, 2 Nov 2026); Guardian (2 Nov 2026); CBS News France attack (cbsnews.com); Trending Topics EU (trendingtopics.eu); BBC (bbc.co.uk, 2 Nov 2026). Ireland: Musgrave/SuperValu statement via The Journal.ie (2 Nov 2026); Agriland.ie (2 Nov 2026). Estonia: Kitman Coldtech CEO Jann Mutso and Selver statement via ERR (Estonian public broadcaster, 2 Nov 2026). No group has claimed responsibility for any of the Nov 2 attacks. [Cyberattack hits Delhaize supermarket fridges (NL Times)](https://nltimes.nl/2026/11/02/cyberattack-hits-delhaize-supermarket-fridges-freezers-dozens-belgium-locations?utm_source=slatesource) [Supermarket freezers across Europe hit by second attack (Guardian)](https://www.theguardian.com/world/2026/nov/02/supermarket-freezers-across-europe-hit-by-second-suspected-cyber-attack?utm_source=slatesource) [France supermarket fridge hack: CBS News](https://www.cbsnews.com/news/cyberattack-supermarkets-refrigerators-france-fires-food-losses/?utm_source=slatesource)