high severity November 20, 2025 · 4 min read Unverified claim — what this is

Söllner Listed by Sarcoma Ransomware Group

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

Söllner Söllner GmbH & Co. KG is a family-owned roofing company based in Plettenberg, operating for four generations since 1902. The company specializes in roofing, carpentry, facade construction, scaffolding, and offers additional services such as container service and crane rentals. Recently, they have expanded into architecture, providing comprehensive services from design to execution. With a team of qualified professionals, Söllner serves both regional and national clients in the industrial, commercial, public, and private sectorsGeo: Germany - Leak size: 286 GB Archive - Contains: Files,
— from Sarcoma’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.

Söllner Listed by Sarcoma Ransomware Group

On November 20, 2025, German family-owned roofing company Söllner GmbH & Co. KG appeared on the leak site of the sarcoma ransomware group. The attackers published a 286 GB archive of internal files stolen during a ransomware incident, exposing the small business and everyone whose personal information was stored in its systems.

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Reported Details of the Breach

Public reporting indicates that Söllner, a four-generation company founded in 1902 and based in Plettenberg, Germany, was hit by a ransomware attack. The sarcoma group exfiltrated 286 GB of internal files before encrypting systems or demanding payment. The data was later posted to the group’s leak site, as documented on ransomware.live.

Available reporting describes the exposed material as internal company files. Exact contents have not been independently verified by third parties, but typical ransomware leaks at companies of this size often include customer records, employee details, contracts, invoices, and correspondence. No confirmed count of affected individuals has been released.

Why This Matters for You and Your Family

When a local business like a roofing contractor suffers a breach, the impact reaches far beyond the company. If you or your family have ever hired Söllner for roof repairs, scaffolding, crane rental, or architectural services, your name, address, phone number, email, payment details, or project information may now sit in a 286 GB publicly downloadable archive.

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value redacted in this sampleage, relatives, address historySpokeo

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Report details & sourcing

Attributed to Sarcoma · 141 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed November 20, 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

Sarcoma — 141 incidents tracked

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

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