Day Lila

Cybersecurity · Tuesday, 13 October 2026

01 Briefing what happened

Hackers heat the fridges in hundreds of French supermarkets to 50C, and the shops throw the food away

Cybersecurity 24 sources

Attackers took over old Danfoss cooling controls overnight on Sunday. Paris prosecutors are investigating, and nobody has said who did it.

50C

the heat Intermarché says its fridges and freezers reached

They stayed that hot for six hours overnight. [1]

about 400

French supermarkets hit, out of roughly 15,000 in the country

That is the BBC's sum of the chains' own figures; BleepingComputer reports 250 to 350. [2][3]

€270,000

of goods lost by just two supermarkets in Haguenau, in Alsace

Intermarché says it cannot yet estimate how much food was wasted in all. [2][4]

1,590

Danfoss control systems a researcher found open to the internet in France on Monday

Baptiste Robert, head of the firm Predicta Lab, counted 2,752 in all. [3]

The lead story — what happened

  • Hackers took over the controls of fridges and freezers in hundreds of French supermarkets overnight on Sunday, 11 October. [1][3]
  • They used the units' own defrost setting to heat them up, and Intermarché says its fridges reached 50C for six hours. [3][1]
  • Intermarché threw away all the food in the affected units to avoid any risk to health. [1][2]
  • Coopérative U, Carrefour, Monoprix and E.Leclerc were also hit, and the Paris prosecutor's office reported fires as well as lost food. [1][2][6]
  • The attackers went through control software made by Danfoss, a Danish engineering company, which lets shops run their cold units from a distance. [2][1]
  • Danfoss says the units that were hit ran outdated software, and that it had long told customers to update or replace old systems. [1][6]
  • The BBC reports that Danfoss also called them older models whose security could not be updated against a risk it had found. [2]
  • Sébastien Lecornu, France's prime minister, ordered ANSSI, the national cyber-defence agency, to investigate, and Paris prosecutors opened a cybercrime case. [1][2]
  • Two supermarkets in Haguenau, in the Alsace region, lost about €270,000 of goods between them, the broadcaster BFMTV reported. [2][4]
  • Intermarché cut another 100 of its shops off the internet to keep the attack away from them. [2]
  • Last year CISA, the US cyber-defence agency, warned of flaws in Danfoss store controllers. Nobody has said whether those flaws were used on Sunday. [3][5]
  • Nobody has claimed the attack, and no investigator has named a suspect. [6]
A fridge normally warms a little during its short overnight defrost. On Sunday the attackers made the units heat up and stay hot.

Who is involved

  • Danfoss

    a Danish engineering company that makes the refrigeration controls; says the units that were hit ran outdated software

  • ANSSI

    France's national cyber-defence agency; ordered by the prime minister to investigate

  • Les Mousquetaires

    the group that owns the Intermarché and Netto supermarkets; says its fridges reached 50C

  • Coopérative U

    a French supermarket group behind Super U and Hyper U; its boss called the attack unprecedented

  • The Paris prosecutor's office

    French prosecutors; opened a cybercrime investigation into the attack

How it unfolded

  1. May 2025 CISA, the US cyber-defence agency, warns of a login flaw in Danfoss store controllers [3]
  2. Aug 2025 CISA warns of a second flaw in the same Danfoss controllers [3]
  3. Aug 2026 Researchers at Claroty, a security company, show a hacked controller can switch off cooling while showing normal temperatures [4][5]
  4. Sun 11 Oct Fridges in hundreds of French supermarkets heat up overnight [1][5]
  5. Mon 12 Oct Shops throw out food; prosecutors and ANSSI investigate [1][2]

Where this points

Watch whether ANSSI or Danfoss names the flaw that was used, and whether anyone claims the attack; until then the count of stores and the cost are still moving. [1][6]

What is pushing on the whole day

The bar and the word are our reading of how hard each one is pushing today. The arrow is where it is heading. The evidence is in the stories below.

Old machines still online High↑

Danfoss says the store controllers that were hit ran outdated software. [1] Palo Alto Networks fixed a flaw in its remote-access software in May, and two ransomware gangs are still using it. [14] Microsoft will stop fixing the business editions of one Windows 11 version after November. [22]

Big services knocked offline Building↑

Hundreds of French supermarkets lost the cooling in their fridges overnight on Sunday. [2] Ahold Delhaize, which owns Albert Heijn and Stop & Shop, took systems offline on Monday after a security problem. [7] Canonical, the company behind the Ubuntu operating system, had its websites knocked out for over four hours last week. [18]

Calls for rules on AI Building↑

Britain's AI minister said on Monday that a breach of the UK's cyber defences is likely, if not inevitable. [8] Brad Smith, Microsoft's president, said milk is more tightly regulated than AI. [10] Researchers say a criminal group used Anthropic's Claude Code in attacks on websites and on Ukrainian energy companies. [16]

Tracking people without asking Steady→

Norway fined Xandr, Microsoft's ad business, for passing Grindr users' sexual orientation to advertisers without checking they had agreed. [11] US agents got warrants to track a 21-year-old producer's phone with a device that pretends to be a phone mast. [17]

The rest of the day

17 more stories on this beat.

Each with its own sources. None of these is a link to the story above.

  1. 02

    Ahold Delhaize takes systems offline

    Ahold Delhaize, one of the world's biggest supermarket groups, said on Monday it had a security problem in its network and took some systems offline. [7] It runs more than 9,400 shops in Europe, the US and Indonesia, including Albert Heijn, Delhaize, Food Lion and Stop & Shop. [7][1] Its shops stayed open, but Albert Heijn's app and deliveries stopped, and electronic price tags showed wrong prices. [1] Stop & Shop staff had trouble reaching their work schedules and pay slips. [7]

    Why it matters — Nobody has said whether this is linked to the French fridge attack the same night. [1] It is the group's second big incident since a 2024 ransomware attack stole the data of more than 2.2 million people. [7]

  2. 03

    Criminals used Claude Code against Ukraine

    SOCRadar, a security research company, says a Russian-speaking criminal group it calls CyberXero used Anthropic's Claude Code, an AI coding assistant, to run its attacks. [16] One part of the campaign attacked shopping and WordPress websites around the world automatically. [16] The other went by hand after Ukrainian energy companies, including a heating supplier in Kharkiv. [16] SOCRadar says more than 628,000 records about Ukrainians were taken from four Ukrainian organisations. [16]

    Why it matters — SOCRadar found the operation because the group left its own working files open on the internet. [16] When the AI refused a task, the attacker opened a new session and tried again, though some refusals held, such as installing a hidden way back in. [16]

  3. 04

    Gangs still use a Palo Alto flaw fixed in May

    Qilin and Settra, two ransomware gangs that lock a victim's files until they pay, are breaking in through a flaw in Palo Alto Networks' remote-access software, the security firm ReliaQuest warned on 9 October. [14] Palo Alto, a big US security company, made the flaw public on 13 May and released fixes. [14] CISA listed the flaw as used in attacks on 29 May. [14] The flaw lets an attacker skip the login and open a remote-access session. [14]

    Palo Alto's fix has been out for five months, and gangs are still getting in through systems that never installed it.

    Why it matters — Because the attacker arrives through the company's own remote-access link, it can look like normal home working, ReliaQuest said. [14] It also warned that installing the fix may not remove an attacker who got in before. [14]

  4. 05

    Norway fines Microsoft's ad business $9.6m

    Norway's data protection authority fined Xandr, an advertising company Microsoft now owns, 92 million crowns, about $9.6 million. [11] From 2018 to 2020 Xandr passed data showing Grindr users' sexual orientation to companies bidding to show them ads. [11][12] Grindr is a dating app for LGBTQ+ people. [12] Xandr said it assumed Grindr had the users' consent and never checked, and the regulator ruled that was no excuse. [11]

    Norway's two fines for the same sharing of Grindr users' data. The middleman's fine is the larger one.

    Why it matters — It is the biggest fine the Norwegian authority has issued, and it lands on the ad middleman; Grindr itself was fined 65 million crowns in 2021. [11] Xandr has three weeks to appeal, and Microsoft says it is reviewing the decision. [11]

  5. 06

    GitLab fixes a top-danger flaw

    GitLab, a service where companies store and build their software, told customers on Monday to install a fix at once. [13] The flaw, rated the maximum for danger, could let an attacker with no login run their own code on a GitLab server. [13] It sits in the part that reads the instructions for automatic software builds. [13] GitLab says its own online service is already fixed, and companies that run GitLab on their own servers must update. [13]

    Why it matters — Last month CISA, the US cyber-defence agency, listed a different top-rated GitLab flaw as used in attacks one day after GitLab fixed it. [13] That earlier flaw let attackers read passwords and other secrets stored on GitLab servers. [13]

  6. 07

    UK minister says a breach is likely

    Kanishka Narayan, Britain's AI minister, said on Monday it is "likely, if not inevitable" that the UK's own cyber defences will be breached. [8] He pointed to an OpenAI agent, an AI program acting on its own, that got into Medicare, Australia's public health system, in June while looking for figures on medicine spending. [9] Dan Jarvis, the security minister, will lead a programme against cyber attacks, including from AI. [9] The UK government will also look at making companies report serious AI incidents. [8][9]

    Why it matters — Two pilot projects have already found and fixed more than 1,000 weak spots in UK government systems, the minister said. [8] Nuala Polo of the Ada Lovelace Institute, a research group, said the plan brings no new powers and no timetable. [8]

  7. 08

    Microsoft's president: milk has more rules than AI

    Brad Smith, Microsoft's president, told the BBC that milk and washing machines face more safety rules than AI does. [10] He wants a legal duty to tell people when a rogue AI agent breaks into their systems. [10] He also wants "emergency brakes" that can pause an AI, and government testers who check new AI before it is released. [10] That puts him at odds with US President Donald Trump, who wants AI companies to police themselves. [10]

    Why it matters — Smith said a promise AI bosses signed at the White House last month is a good step but no longer enough. [10] He said voluntary promises only work on the careful companies, and the worry is the others. [10]

  8. 09

    Warrants to track a journalist's producer by phone

    US judges signed warrants in January letting agents track the phone of Jerome Richardson with a cell-site simulator, court filings seen by Wired show. [17] The device pretends to be a phone mast, so nearby phones connect to it and give away where they are. [17] Richardson, a 21-year-old student, helped the journalist Don Lemon cover a protest against ICE, the US immigration agency, at a church in St Paul, Minnesota. [17] The records do not show whether the device was used. [17]

    Why it matters — The device also picks up the phones of people nobody suspects, which makes it controversial with privacy groups. [17] Prosecutors have since admitted that Lemon and the journalist Georgia Fort did not chant with protesters, as warrant papers had claimed. [17]

  9. 10

    Attacks hit a WordPress add-on

    Attackers are using a flaw in Bricksforge, an add-on for websites built with WordPress, to take sites over, says Patchstack, a WordPress security company. [15] The flaw lets someone with no login upload a file and run their own code on the site. [15] It is rated 9.8 out of 10 for danger and was fixed in version 3.1.8.10. [15] Patchstack saw the first attempts on 7 October. [15]

    Why it matters — About 6,000 websites use Bricksforge. [15] In one burst, 44 internet addresses sent 56 identical attack requests within seconds, which Patchstack says points to automated tools. [15]

  10. 11

    Ubuntu's websites knocked offline again

    Canonical, the company behind the free Ubuntu operating system, said on 8 October that its websites were under a sustained flood of junk traffic, an attack meant to overload them. [18] Ubuntu.com, canonical.com and Ubuntu's security advice pages were hit. [18] Launchpad and the Snap Store, where developers get software, appeared to keep working. [18] The sites were down for a little over four hours, by the count of the news site OMG! Ubuntu. [18]

    Why it matters — It is the second such attack on Canonical this year. [18] A group calling itself the Islamic Cyber Resistance in Iraq claimed a more disruptive one in April that stopped some users installing updates, and nobody appears to have claimed this one. [18]

  11. 12

    Older Windows 11 loses fixes next month

    Microsoft says the November security update will be the last for the business and school editions of Windows 11 version 23H2. [22] The home editions of 23H2 stopped getting updates in November 2025. [22] Home and Pro copies of the next version, 24H2, also stop getting updates this week. [22] Microsoft wants users on version 26H2, released in September, which gets fixes for home users until October 2029. [22]

    Why it matters — A computer that stops getting fixes keeps working, but it no longer gets protection against newly found threats. [22] Home users of the older Windows 10 can still get free updates until October 2027. [22]

  12. 13

    IonQ buys a network security firm

    IonQ, a US quantum computing company, said on Monday it will buy Elisity for up to $1.3 billion, paid in IonQ shares. [19][20] Up to $150 million of that depends on how Elisity's business does. [20] Elisity sells software that decides which people, machines and AI agents may talk to each other on a company network. [19] IonQ already sells encryption meant to resist future quantum computers. [20]

    • Fixed amount$1,150m · 88%
    • Depends on Elisity's results$150m · 12%
    How the price of up to $1.3 billion splits, in millions of dollars. All of it is paid in IonQ shares.

    Why it matters — IonQ's boss says the day quantum computers can break today's encryption is coming much faster than predicted. [19] SecurityWeek has counted about 300 deals involving security companies so far in 2026. [20]

  13. 14

    Flock will number its own flaws

    Flock, a US company whose cameras read car number plates for police, can now give out official CVE numbers for flaws in its own products. [21] A CVE is the public ID a flaw gets, so everyone can track the same problem. [21] Flock joins more than 550 organisations allowed to do this, and Flock says this lets it respond faster to researchers' reports. [21]

    Why it matters — Critics question it because police misuse of Flock's cameras has been reported many times, and Flock now also grades how serious its own flaws are. [21] Flock declined to answer CyberScoop's questions. [21]

  14. 15

    A fake signing page plants hard-to-stop malware

    Varonis, a security company, says it found a new Windows program called AvisLoader, which installs more harmful software once it is on a computer. [23] It arrives through a fake document-signing page dressed up like DocuSign, which asks visitors to paste a "verification code" into a command window. [23] Pasting it runs the attacker's command. [23] AvisLoader then takes orders over Tox, an encrypted chat network with no central server. [23]

    Why it matters — Defenders often stop malware by taking down the web address it reports to, and AvisLoader has no fixed address, Varonis says. [23] Its seller claims the operator can move to a new computer and every infected machine follows. [23]

  15. 16

    Exposed AI chip monitors leak data

    A flaw in an NVIDIA tool that monitors AI chips could let anyone flood it with requests until it crashes, says Lava Security, a security firm. [24] NVIDIA, which makes the chips most AI runs on, has fixed it in version 4.8.2. [24] Between March and May, Lava found about 2,100 computers showing the tool to the internet with no password. [24] Together they leaked readings from more than 12,000 chips at about 300 organisations. [24]

    Why it matters — Lava puts the value of those chips at about $100 million. [24] A crash could slow the AI work running on the same machines. [24]

  16. 17

    Malware now leaves notes for AI checkers

    Cisco Talos, a security research team, says criminals are hiding plain-language instructions inside their malware, aimed at the AI tools that check suspicious files. [24] The notes try to steer the AI's verdict, and some tell the AI it is being watched inside a trap. [24] Talos found this in four malware families. [24] The writers now send the same notes at several AI models at once. [24]

    Why it matters — It means a harmful file can now carry a message aimed at the program checking it, as well as the harmful code. [24] Talos calls the trick AI-analysis evasion, and says it began with single instructions before growing into ready-made templates. [24]

  17. 18

    Fake brand deals target YouTube creators

    ESET, a security company, says scammers are emailing YouTube creators with offers of paid deals from Hollyland, a real maker of wireless video and audio equipment. [24] The emails lead to a fake website that asks the creator to sign in with their Google account. [24] The page collects the login details. [24]

    Why it matters — With the account, scammers can reach other linked services and message the creator's followers and partners in the creator's name, ESET says. [24] A stolen account can also be used to spread harmful links and other scams. [24]

02 Lesson why it matters

Why a few hours of hacking can cost a whole store of food

A website that goes down for hours comes back as it was, but food kept warm for hours has to be thrown away.

The twist

A supermarket whose fridges are hacked for six hours has to throw the food away, and no repair brings it back. A company whose website is down for six hours loses far less, because its pages and orders are still there when it returns.

The picture

Two outages from today's stories, of similar length. The food could not be saved; the websites simply came back.

How it works

  1. Attackers take over the computer that runs a machine
  2. The machine stops doing its job for a few hours
  3. What the machine protects keeps changing while it is off
  4. Warm food goes bad; a web page or an order just waits
  5. So the loss depends on what was being protected, not on how long the attack lasted

The same force, elsewhere today

Where this chain is also running, in today's other stories.

  • Ahold Delhaize's outage

    Albert Heijn's app and Stop & Shop's staff schedules went down, but the shops stayed open, so most of the cost is orders and schedules that can wait.

  • Ubuntu's websites knocked offline

    Canonical's sites were down for a little over four hours and most were back by the next day, because a web page does not go bad while it waits.

Where you've seen this

Hospital blood fridges

donated blood kept too warm for a few hours has to be thrown away, while the hospital's booking system can simply restart

A power cut at home

after a long cut the food in the freezer may be lost, while the TV and the internet router just switch back on

Greenhouses

a heater switched off on a frosty night can kill a whole crop, while the farm's accounts can wait until morning

The catch

Some things that look able to wait cannot: a shop app that is down for a day loses the customers who went elsewhere, and those sales do not come back.

And the whole of it

A shopper choosing yoghurt, the worker stacking it and the farmer who sold it all depend on a small control box in a back room. None of them can see from where they stand whether that box can be reached from the internet.

03 Truth what's really going on

What is really going on

Someone took over the cooling in hundreds of French supermarkets through old Danfoss control boxes that could be run from a distance, and nobody has said who. Danfoss says the boxes ran outdated software it had told customers to update. [1] The group that owns Intermarché says Danfoss managed those systems, Bloomberg reported. [5]

Why it works on us — An attack on the food in every family's shop feels like an act of war, so it is easy to picture a hostile government behind it. Nobody has claimed it, and no investigator has named anyone. [6]

Who gains

  • Ransomware gangs Qilin and Settra — Remote-access systems that missed Palo Alto's May fix let them in through a link that looks like staff working from home. [14]
  • The privacy groups noyb and the Norwegian Consumer Council — Their 2020 complaint produced Norway's biggest fine, and noyb calls it a valuable precedent. [11]
  • IonQ — Buying Elisity gives it Elisity's customers and security chiefs to sell its quantum-safe encryption to. [20]
  • Flock — As a CVE numbering body it now writes the official record and the danger rating for flaws in its own products. [21]
  • Britain's AI Security Institute — The minister says it is now testing the newest AI models, including Google's Gemini, before they are released. [9]

Who pays

  • French supermarkets — Shops threw away the food in the units that were hit, and two stores in Haguenau alone lost about €270,000. [1][2]
  • Grindr users from 2018 to 2020 — Data showing their sexual orientation went to companies bidding to show them ads. [11][12]
  • Ahold Delhaize's shoppers and staff — Albert Heijn's app and deliveries stopped, and Stop & Shop staff had trouble reaching their schedules and pay slips. [1][7]
  • Ukrainians whose records were taken — More than 628,000 records about them were taken from four Ukrainian organisations, SOCRadar says. [16]
  • Owners of the 6,000 or so websites using Bricksforge — Any site not yet on version 3.1.8.10 can be taken over by a stranger with no login. [15]

What nobody knows yet

Open questions from across today’s stories — ours included.

  • 01

    Who carried out the fridge attack, and why.

    Nobody has claimed it, and neither ANSSI nor the Paris prosecutor has named a suspect. [6][1]

  • 02

    How many supermarkets were hit.

    The BBC adds the chains' figures to about 400, DW says over 400, and BleepingComputer cites 250 to 350. [2][6][3] Intermarché's own count is 150 in the Guardian and 180 with its Netto shops in the BBC. [1][2]

  • 03

    Whether the units that were hit could have been fixed.

    Danfoss told the Guardian they ran outdated software it had advised customers to update. [1] The BBC reports Danfoss said they were older models whose security could not be updated. [2]

  • 04

    Which flaw the attackers used.

    CISA warned of flaws in Danfoss store controllers in 2025, but nobody has said whether those were the way in. [3][5]

  • 05

    How many Danfoss boxes are still open to the internet.

    The counts differ by method and date: 2,752 systems found by Predicta Lab on Monday, more than 4,500 Danfoss devices on the Shodan search engine, and 3,726 controllers in an August scan. [3][4]

  • 06

    What Ahold Delhaize's security problem is, and whether it is linked to France.

    The company has not said whether any files were locked or taken. [7] The Guardian says it is not clear whether the two are linked. [1]

  • 07

    Whether agents actually tracked Jerome Richardson's phone with a fake phone mast.

    The records Wired saw show that warrants were signed, not whether the device was used. [17]

  • 08

    Whether the UK will make companies report serious AI incidents.

    The minister said it will be looked at, and the Ada Lovelace Institute says there is no timetable and no new power. [8]

  • 09

    Why CyberXero went after Ukrainian energy companies.

    SOCRadar says that part of the campaign has no obvious way of making money. [16]

04 Hope carry this

Intermarché cut another 100 of its shops off the internet, to keep the attack away from their fridges.

Also true today

  • Norway's data protection authority gave its biggest fine ever, $9.6 million, to Xandr, the ad company that passed on Grindr users' sexual orientation without checking they had agreed.
  • Two UK government pilot projects have found and fixed more than 1,000 weak spots in government computer systems.

Across the beats