Was BiesSse hit by ransomware?

BiesSse was listed by the Spacebears ransomware operation, 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 Spacebears ransomware group?

Spacebears 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 BiesSse breach?

Spacebears published data attributed to BiesSse (~500 GB), around 12 files records. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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BiesSse

Claimed by Spacebears · listed 1 day ago

500 GB

Data size

12 files records

Age

since listed · data leaked

Status timeline

ListedAug 30, 2026
Data leakeddate unknown

At a glance

Group: Spacebears
Status: Data leaked
Sector: Manufacturing/Adhesive Tapes
Listed on leak site: Aug 30, 2026
Data size: 500 GB
Records: 12 files

About the victim

AI dossier — public-source company profile

BiesSse is a global manufacturer of high-performance technical adhesive tapes, operating for over 40 years with a production plant covering 11,000+ square meters. The group operates worldwide through subsidiaries in Austria, Brazil, China, and Mexico, serving professional and industrial customers with on-site support and quick response capabilities.

Industry: Manufacturing – Technical Adhesive Tapes
Founded: 1980

Attack summary

Severity: high — Confirmed exfiltration of PII at scale (employees and clients), financial documents, and database contents from an operational manufacturing business. 500 GB data volume suggests substantial exposure.

Spacebears claims to have exfiltrated personal information of employees and clients, financial documents, and SQL database contents from BiesSse. The group published 500 GB of data.

high

Data the group says was taken

AI dossier — extracted from the leak post

Personal information of employees
Personal information of clients
Financial documents
SQL database

What the group claims

A group operating on the global market for over 40 years, specializing in the production and conversion of highly performing technical adhesive tapes. The production plant covers over 11,000 sq.mt. and operates worldwide through subsidiaries in Austria, Brazil, China and Mexico.

The leak post

captured from the group's site

Do you trust your data to this company? 
This page contains a list of companies whose clients and business partners entrusted them with their confidential data, but these companies leaked data. The data may contain confidential information such as login credentials, intellectual property, personal and financial data, etc.
Freelom.net s.r.o. is a Czech internet service provider and IT company based in Lomnice nad Popelkou, which has been operating since 2009 . The company's primary focus is providing wireless internet access via its own network, with services available 24 hours a day, 7 days a week.The company is led by two managing directors, Jiří Plichta and Petr Malý. A priority for Freelom.net is the speed, reliability, and quality of its services , and it aims to resolve technical issues within a maximum of 24 hours
-SQL Data (All client personal data)
Holzmarkt Chemnitz is a specialized retail store for building materials and wood products, operating two branches in Chemnitz (Fichtestraße and Kalkstraße). They serve as a competent partner for both professional builders and private customers.
-Personal information of employees and clients -Financial documents-SQL DB
SEARS (Grup…

Data the group says was taken

personal information of employees and clients
financial documents
SQL DB

Screenshot of the leak post

Sources

Leak posthttp://5butbkrljkaorg5maepuca25oma7eiwo6a2rlhvkblb4v6mf3ki2ovid.onion

Source

Indexed 1 day 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 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 212 public disclosures across our corpus. First observed on a leak site on April 29, 2024; most recent post August 30, 2026. The operation is currently active.

Also tracked as: space bears.

Timeline of this disclosure

August 30, 2026BiesSse listed by Spacebearson the group's public leak site

Data size: 500 GB
Records: 12 files

Other recent disclosures by Spacebears

Spacebears has been linked to 212 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/Adhesive Tapes sector.

If your organisation is affected

A listing by Spacebears means BiesSse 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.