high severity May 28, 2024 · 3 min read Unverified claim — what this is

modplan.co.uk Listed by Black Basta Ransomware Group

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

For over 50 years, Modplan has been manufacturing and supplying leading-edge products to our installing partners for the fenestration market. Fundamental to our success is the ‘Modplan Mission’ to continually exceed customers’ increasing expectations. Today’s installing specialists demand the widest choice, the finest quality and the highest standards of customer service. With Modplan, you can specify, stock and install our products with complete confidence, as the company’s culture is one of quality whilst delivering the highest possible standards at all times.SITE: www.modplan.co.uk Address
— from Blackbasta’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.

modplan.co.uk Listed by Black Basta Ransomware Group

On May 28, 2024, the UK-based fenestration supplier Modplan appeared on the leak site operated by the Black Basta ransomware group. The listing states that internal files were exfiltrated during a ransomware attack on the company, which has manufactured and supplied products to installing partners for more than 50 years. The number of people whose data may be exposed remains unknown, and the precise contents of the stolen files have not been detailed in the public listing.

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Primary Disclosure Details

The Black Basta leak site entry for modplan.co.uk states that the company suffered a ransomware incident resulting in data exfiltration. It does not quantify the volume of records affected, list specific data types such as customer names, addresses, payment details or employee records, or disclose any ransom demand. The disclosure consists primarily of the company name, website address, and a statement that internal files were taken. No samples of the stolen material appear to have been published on the site at the time of listing.

Why This Matters for You and Your Family

When a supplier like Modplan is breached, anyone who has done business with the company, its installers, or its partners could have personal information at risk. Internal files often contain correspondence, invoices, delivery addresses, phone numbers and email accounts that tie real identities to specific orders. If you or your family have purchased windows, doors or related building products through an installer who sources from Modplan, your contact details may now sit in an attacker-controlled archive. This kind of exposure rarely stays contained; it travels through data markets and fuels further fraud, spam and targeted scams aimed at households.

Doxxing and Identity-Chain Risks

Stolen internal files frequently create long identity chains. An email address or phone number found in one invoice can be cross-referenced with other breaches to reveal full names, home addresses, order histories and sometimes payment references. Attackers and opportunistic criminals then use these linkages to impersonate victims, file fraudulent claims or launch social-engineering attacks. Credential leaks that surface in the same ecosystem can cascade into account takeovers on retail sites, banking portals and, importantly, gaming platforms. Children’s gaming accounts tied to a family email or phone number become especially vulnerable once the chain is mapped.

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Found on people-search siteswe remove these

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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

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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 Blackbasta · 522 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed May 28, 2024

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

Blackbasta — 522 incidents tracked

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

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