high severity March 11, 2025 · 4 min read Unverified claim — what this is

Doman Building Materials Group Listed by Interlock Ransomware Group

If you are a customer of Doman Building Materials Group, here’s what is being claimed, and what it would mean for you.

Doman Building Materials Group is a vertically integrated global building materials group. They supply products to retailers across North America. From basic lumber to next generation products, DOMAN optimizes the supply of a wide range of quality building materials. Headquartered in Vancouver, British Columbia, Canada, we operate distribution centers, wood processing plants, specialty sawmills, planers, wood cleaning facilities across North America and private forest lands. This distinctive vertical model allows us to maintain close relationships with the supply chain, ensuring retailers can
— from Interlock’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.

Doman Building Materials Group Listed by Interlock Ransomware Group

On March 11, 2025, Canadian building materials supplier Doman Building Materials Group appeared on the leak site of the interlock ransomware group. The company, which supplies lumber and specialty wood products to retailers across North America, is claimed to have had internal files exfiltrated during a ransomware attack. While the exact number of people whose information may have been exposed remains unknown, anyone whose personal or employment records were stored in Doman’s systems could now be at risk.

Already exposed?

You can’t unleak data. You can take away what it’s worth.

A leaked record is where it starts, not where it ends. What turns it into your front door is the look-up sites publishing your address beside your name — and those are what an AI reads when somebody asks about you. The free scan shows you both. We write to 580 companies.

See what is exposed about you — free scan →

Watch Doman Building Materials Group

Get alerted the next time Doman Building Materials Group files a breach with any US regulator — the filing, dated and sourced. A free single-company slice of Signals; no account needed.

We’ll email you only about Doman Building Materials Group’s future breach filings and how to watch a whole vendor list — not general marketing. Unsubscribe any time.

Watching your whole vendor list (50 to 500 companies, by tier) is GalaxyWarden Signals.

Reported Details from Reports

Public reporting indicates that interlock posted proof of the breach on its dark-web leak site, listing Doman Building Materials Group as a victim. The data taken includes internal files that ransomware operators typically harvest before encrypting systems. No confirmed total of affected records has been published, and the company has not yet issued a detailed public statement on the precise data types involved. The listing appeared on March 11, 2025, giving observers a clear timeline of when the threat actor chose to publicize the incident.

Why This Matters for You and Your Family

When a company like Doman suffers a breach, the information it holds on suppliers, customers, employees, and contractors can end up in criminal hands. That data often contains names, addresses, phone numbers, email accounts, and sometimes dates of birth or government identifiers. Once exposed, these details become building blocks that identity thieves or harassers can use against you or your family members. Even if you never shopped at a Doman retailer, an employee, vendor, or contractor connection could still place your information in the stolen files.

Credential leaks from corporate networks frequently cascade into personal account takeovers. If you or your children reuse work-related passwords on gaming platforms, email, or shopping sites, criminals can move quickly from corporate data to personal targets.

You’ve used today’s 5 free articles · resets tomorrow

Create a free account to keep reading

The rest of this article comes straight back — free, no card, nothing you’ve already read goes away. Then see whether your own data is exposed too: the scan on this site is free with or without an account, and the account is what keeps the result after the emailed link expires.

Reading this for a company?

GalaxyWarden Signals watches the organisations you name and emails you when one of them actually discloses — SEC 8-K Item 1.05 filings and corroborated breach records, with a JSON API. It monitors companies, not people: it does not scan you and does not remove your personal data.

See GalaxyWarden Signals →

Or make a free reader account first

Free reader account

No card, no charge. You read the blog without a limit — every article, no daily count — and it saves your exposure-scan results so you can open them again after the emailed link expires. We won’t email you anything else unless you tick the box asking us to. The next step shows what the paid plans add — free stays the first option on it.

Create a free account →

Free accounts are for personal use. If you’re reading for a company, that’s Signals (terms).

Already have an account? Log in

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

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 Interlock · 131 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed March 11, 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.

Threat-actor tracker

Interlock — 131 incidents tracked

Every breach we've attributed to Interlock, in one running log. See who else they've hit →

Related breaches

high September 30, 2026