high severity September 26, 2025 · 3 min read Unverified claim — what this is

bun.nl Listed by Threeam Ransomware Group

If you are a customer of bun.nl, here’s what is being claimed, and what it would mean for you.

Bun creëert woon-, werk- en leefruimte voor iedereen en van de beste kwaliteit. Wij spelen in op zaken die leven in de maatschappij. De behoefte hierin aan woningen in is groot. Daarom houden wij ons bezig met de ontwikkeling en het renoveren van
— from Threeam’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

bun.nl Listed by Threeam Ransomware Group

On September 26, 2025, Dutch housing organization Bun.nl appeared on the leak site of the threeam ransomware group, with internal files reportedly exfiltrated during a ransomware attack. The organization, which develops and renovates housing across the Netherlands, has not yet disclosed the exact number of people whose personal information may have been exposed.

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What Public Reporting Shows

Public reporting indicates that threeam listed Bun.nl on its dark-web leak portal and claims to have stolen internal documents. Available details describe the data as internal files, though the precise volume and full list of exposed record types remain unconfirmed by the company. The listing appeared on September 26, 2025, following a ransomware deployment. No public statement from Bun has confirmed the breach or provided a timeline of when the intrusion occurred.

Industry research from sources such as DoxxScan™ continuous monitoring has not yet catalogued this incident, which is typical for fresh ransomware leaks that surface first on dedicated extortion sites.

Why This Matters for You and Your Family

When a housing organization like Bun suffers a breach, the information exposed often includes names, addresses, contact details, financial records, and correspondence tied to housing applications, rentals, or renovations. If you or your family have ever applied for housing, rented through Bun, or interacted with their services, your data could now sit in attackers’ hands. Addresses and phone numbers are particularly dangerous because they allow criminals to target you with phishing, impersonation scams, or physical threats.

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value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

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Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Report details & sourcing

Attributed to Threeam · 100 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed September 26, 2025

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

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Threeam — 100 incidents tracked

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