Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Lösing Filtertechnik

Claimed by Spacebears · listed 3 days ago

3d
Age
since listed · data leaked

Status timeline

  1. ListedJun 10, 2026
  2. Data leakeddate unknown

At a glance

Group
Spacebears
Status
Data leaked
Country
Germany
Sector
Manufacturing
Listed on leak site
Jun 10, 2026

About the victim

AI dossier — public-source company profile

Lösing Filtertechnik is a German specialist in filtration technology with over 70 years of experience. The company manufactures and supplies high-quality filters (oil, air, fuel, hydraulic, water) and custom filtration solutions for automotive, commercial vehicles, construction machinery, rail, and maritime sectors. It operates under the brand SEPAR and serves both B2B and retail customers.

Industry
Filtration Technology & Components
Employees
51-200
Founded
1955

Attack summary

Severity: critical — Confirmed exfiltration of 850+ GB including regulated personal data (employee PII), trade secrets (patents/drawings), and sensitive business data (financial, customer, supplier records). Scale and data sensitivity warrant critical classification.

The spacebears group claims to have exfiltrated over 850 GB of company files, including patents, technical drawings, financial documents, customer and supplier information, and employee personal data.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • patents
  • technical drawings and 3D models
  • financial documents
  • customer information
  • supplier information
  • employee personal data

What the group claims

Lösing Filtertechnik (Willibrord Lösing Filtertechnik e.K.) is a leading German specialist in filtration technology with more than 70 years of experience since its founding in 1955.The company offers a wide range of high-quality filters, including oil, air, fuel, hydraulic, and water filtration solutions, along with custom-tailored products for various industries such as automotive, commercial vehicles, construction machinery, rail transport, and more.Known for its expertise with brands like SEPAR and a strong focus on innovation, Lösing develops individual solutions precisely matched to customer requirements while maintaining top quality and reliable service.Headquartered in Hattingen, Germany, the company serves both B2B clients and private customers through its online shop, emphasizing perfect filtration for every challenge. https://***.de/

The leak post

captured from the group's site
Lösing Filtertechnik (Willibrord Lösing Filtertechnik e.K.) is a leading German specialist in filtration technology with more than 70 years of experience since its founding in 1955.The company offers a wide range of high-quality filters, including oil, air, fuel, hydraulic, and water filtration solutions, along with custom-tailored products for various industries such as automotive, commercial vehicles, construction machinery, rail transport, and more.Known for its expertise with brands like SEPAR and a strong focus on innovation, Lösing develops individual solutions precisely matched to customer requirements while maintaining top quality and reliable service.Over 850GB of company files:- patents- drawings and 3D models- financial documents- customer and supplier information- employee personal data

Screenshot of the leak post

Leak screenshot for Lösing Filtertechnik

Sources

Source

Indexed 3 days 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About Spacebears

Spacebears is a recently emerged ransomware group first observed in April 2024, operating with apparent financial motivations and demonstrating a broad targeting approach across multiple sectors and geographic regions. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their targeting pattern suggests a professional operation focused on maximizing financial returns rather than geopolitical objectives. With 117 known victims since their emergence, Spacebears has shown particular focus on organizations in the United States, Germany, Spain, Italy, and Canada, with their attacks primarily affecting technology, healthcare, manufacturing, and business services sectors, indicating they likely employ opportunistic targeting rather than sector-specific specialization. Their attack methodology, initial access vectors, and specific technical capabilities have not been extensively documented in public reporting from major cybersecurity firms or law enforcement agencies, limiting detailed analysis of their operational procedures and tools. Due to the group's recent emergence and limited public intelligence reporting, notable high-profile campaigns and specific victim details remain largely undocumented in established threat intelligence channels. The group's current operational status appears active given their recent emergence timeline, though comprehensive analysis is constrained by the lack of detailed public reporting from authoritative cybersecurity sources. The group has been linked to 176 public disclosures across our corpus. First observed on a leak site on April 29, 2024; most recent post June 11, 2026. The operation is currently active.

Also tracked as: space bears.

Timeline of this disclosure

  • June 10, 2026Lösing Filtertechnik listed by Spacebearson the group's public leak site

Other recent disclosures by Spacebears

Spacebears has been linked to 176 public victims on Darkfield. A sample of the most recent:

See the full Spacebears dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, Lösing Filtertechnik is reported in Germany, a country with 334 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Spacebears means Lösing Filtertechnik 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.
  • Monitor for the data appearing on Spacebears'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.