Was Polstermöbel Oelsa GmbH hit by ransomware?

Polstermöbel Oelsa GmbH was listed by the Sarcoma ransomware operation (Germany), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Sarcoma ransomware group?

Sarcoma is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Polstermöbel Oelsa GmbH breach?

Sarcoma published data attributed to Polstermöbel Oelsa GmbH (~987 GB), around 250 employees records. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Polstermöbel Oelsa GmbH

Claimed by Sarcoma · listed 1 year ago

987 GB

Data size

250 employees records

17m

Age

since listed · data leaked

Status timeline

ListedFeb 10, 2025
Data leakeddate unknown

At a glance

Group: Sarcoma
Status: Data leaked
Country: Germany
Sector: Manufacturing
Listed on leak site: Feb 10, 2025
Data size: 987 GB
Records: 250 employees

About the victim

AI dossier — public-source company profile

Polstermöbel Oelsa GmbH is a German manufacturer of functional upholstered furniture with over 150 years of market presence. Operating since 1869 with approximately 250 employees, the company specializes in designing and producing upholstered furniture solutions for residential interiors, supported by in-house field service and customer support teams.

Industry: Upholstered Furniture Manufacturing
Employees: 250
Founded: 1869

Attack summary

Severity: high — Confirmed data exfiltration of substantial volume (987 GB) including databases and email systems containing likely business operations, customer, and employee information. Data has been published.

Sarcoma ransomware group claims to have exfiltrated 987 GB of company data including files, SQL databases, and Exchange email systems from Polstermöbel Oelsa GmbH and published the data.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business files
SQL databases
Email archives (Exchange)

What the group claims

Polstermöbel Oelsa GmbH Since our company was founded in 1869 and thus has a company tradition spanning over 150 years, we have been able to establish ourselves in the market as a specialist for functional upholstered furniture. Our company has functional solutions that are unique in the industry and can be integrated into both classic and modern living room dreams. With our in-house field and customer service and almost 250 employees, our trading partners and customers have a highly motivated team at their disposal to meet the highest quality standards. We would be delighted to help you realize your dream living room!Geo: Germany - Leak size: 987 GB Archive - Contains: Files, SQL, Exchange

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Sarcoma

Sarcoma is a relatively new ransomware group that emerged in October 2024, operating with apparent financial motivations and demonstrating a broad international targeting approach with at least 140 documented victims across multiple countries and industry sectors. The group's origin and affiliations remain unclear due to its recent emergence, with no publicly documented connections to established ransomware families or confirmation of whether they operate as an independent entity or through a Ransomware-as-a-Service model. Limited public information is available regarding Sarcoma's specific attack methodologies, initial access vectors, or technical capabilities, though their targeting patterns suggest opportunistic rather than highly selective victim selection across diverse industries including manufacturing, business services, agriculture and food production, and technology sectors. The group has shown a particular focus on victims in the United States while also maintaining operations against targets in Italy, Canada, Germany, and Australia, though no specific high-profile attacks or record ransom demands have been publicly documented by major security firms or law enforcement agencies. Given the group's recent emergence in late 2024, Sarcoma appears to remain active with no reported law enforcement disruptions or confirmed rebranding activities at this time. The group has been linked to 150 public disclosures across our corpus. First observed on a leak site on October 9, 2024; most recent post May 12, 2026. The operation is currently active.

Also tracked as: Sarcoma Ransomware Group.

Timeline of this disclosure

February 10, 2025Polstermöbel Oelsa GmbH listed by Sarcomaon the group's public leak site

Data size: 987 GB
Records: 250 employees

Other recent disclosures by Sarcoma

Sarcoma has been linked to 150 public victims on Darkfield. A sample of the most recent:

See the full Sarcoma dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 3,681 disclosures indexed across all operators we track. Geographically, Polstermöbel Oelsa GmbH is reported in Germany, a country with 926 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Sarcoma means Polstermöbel Oelsa GmbH appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CERT-Bund (Germany), as required for your jurisdiction.
Monitor for the data appearing on Sarcoma's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.