Ahold Delhaize and its Dutch retail brands confirmed a cybersecurity incident on October 12, 2026. Stores remained open, but some websites, apps, customer-service, logistics, and loyalty services were temporarily unavailable. The companies said they were investigating; their statements did not confirm that customer data had been accessed or stolen.
Which European retailers confirmed incidents?
The confirmed current incident is in the Netherlands. Ahold Delhaize said on October 12, 2026, that it was experiencing a security issue within its network. The company said teams were assessing and mitigating the issue and that some systems had been taken offline as a protective measure. Its statement said stores remained open. Ahold Delhaize’s statement did not say customer data had been accessed.
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Gall & Gall said Albert Heijn, Etos, and Gall & Gall had been dealing with a cybersecurity incident since Sunday afternoon. Its statement was last updated October 12, 2026, at 11:30 local time in Europe/Amsterdam. The company described precautionary system shutdowns and service interruptions while the investigation continued. Gall & Gall’s update emphasized protection of customer, employee, and partner data, but did not confirm that data had been taken.
These statements establish an incident and operational effects, not a confirmed personal-data breach. They do not identify an attacker or attack method, report a finding of data loss, or give a recovery timetable.
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What is working, and what is unavailable?
According to Gall & Gall’s statement, stores remained open, while these services were temporarily unavailable after systems were switched off as a precaution:
- Websites and apps
- Customer service
- Logistics systems
- Personal benefits and loyalty systems
The company said it was investigating and working to restore services, but could not yet say when they would return. The statements do not establish the current status of every individual store, order, or service, so check the relevant retailer’s official updates before making a trip or relying on an online service.
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Has customer data been stolen?
As of the October 12, 2026, statements, the companies had not confirmed whether customer data was accessed or stolen. Their statements also did not provide a confirmed estimate of the incident’s scale. That is different from a finding that no data was affected: the investigation was ongoing, and the public statements did not settle the question.
Do not treat claims about unrelated cyber incidents as evidence about this one. No attribution or connection to another incident is established in the companies’ statements.
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How this differs from the 2025 UK retail incidents
Earlier incidents in the United Kingdom provide context, but the available sources do not establish a connection to the October 2026 Dutch incident.
| Date and location | Retailers | Confirmed information | Data and investigation status |
|---|---|---|---|
| October 2026, Netherlands | Ahold Delhaize; Albert Heijn, Etos, and Gall & Gall | Stores remained open; some systems were taken offline, and Gall & Gall described temporary outages affecting websites, apps, customer service, logistics, and loyalty functions. | The companies were investigating. Their statements did not confirm data access or theft, identify an attack method, or give a recovery timetable. Ahold Delhaize; Gall & Gall. |
| May 2025, United Kingdom | Marks and Spencer, Co-op, and Harrods | The UK’s Information Commissioner’s Office (ICO) said on May 2, 2025, it had received reports from Marks and Spencer plc and Co-op Group and was making enquiries with them alongside the National Cyber Security Centre. The Netherlands’ NCTV later described the incidents as part of a broader retail campaign. It reported that Co-op said the incident disrupted operations and caused empty shelves in some stores. | The NCTV’s 2025 assessment reported that attackers stole data belonging to 6.5 million Co-op customers. This figure concerns the May 2025 incident, not the Dutch incident in 2026. ICO statement and advice; NCTV Cybersecurity Assessment 2025. |
The ICO’s May 2, 2025, statement reported enquiries into the UK companies; the later NCTV assessment supplied the reported Co-op customer-data figure. Neither source establishes that the 2025 UK campaign and the 2026 Dutch incident shared attackers or infrastructure.
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What should affected customers do?
- Check official retailer updates. Use the retailer’s own website or verified communications for current service availability and any advice about your account or personal information.
- Use a unique, strong password. The ICO advises: “Make sure your accounts are protected by a strong password and that you are not using the same password across multiple accounts.” A password manager can help create and store distinct passwords, but it does not resolve the retailers’ incident.
- Follow specific instructions if the retailer confirms an effect on your information. The ICO’s general advice is to follow the retailer’s guidance if it confirms personal information was affected.
For the current Dutch incident, the public statements reviewed do not confirm that customer information was accessed. Customers should rely on subsequent official updates rather than assume either that data was stolen or that it was unaffected.
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