Disclosure context

About Ciphbit

Ciphbit is a relatively new ransomware group that emerged in September 2023, operating with primarily financial motivations and demonstrating a focused targeting approach across Western nations. The group's origin and potential affiliations remain largely undocumented by major threat intelligence organizations, though their operational patterns suggest they operate as an independent entity rather than a established ransomware-as-a-service model. With limited public documentation from authoritative sources like CISA, FBI, or major security research firms, specific details regarding their attack methodology, initial access vectors, and encryption techniques have not been comprehensively analyzed or reported in open-source intelligence. The group has claimed responsibility for attacks against 36 documented victims, primarily concentrating their operations in the United States, Italy, France, Germany, and Portugal, with a notable preference for targeting business services, manufacturing, healthcare, and construction sectors. No major high-profile campaigns or significant law enforcement actions against Ciphbit have been publicly documented by authoritative sources as of current reporting. Based on available intelligence, Ciphbit appears to remain active as of late 2023, though their relatively recent emergence and limited public documentation make definitive status assessments challenging without additional confirmed reporting from established threat intelligence sources. The group has been linked to 36 public disclosures across our corpus. First observed on a leak site on September 14, 2023; most recent post February 10, 2026. The operation is currently active.

Timeline of this disclosure

September 16, 2023Marston Domsel listed by Ciphbiton the group's public leak site

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, Marston Domsel is reported in Germany, a country with 695 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

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Marston Domsel

Claimed by Ciphbit · listed 3 years ago

32m

Age

since listed · data leaked

Status timeline

Listed
Sep 16, 2023
Data leaked

At a glance

Group: Ciphbit
Status: Data leaked
Country: Germany
Sector: Manufacturing
Listed on leak site: Sep 16, 2023

About the victim

AI dossier — public-source company profile

Marston-Domsel is a German manufacturer and marketer of technically advanced sealants, anaerobic liquid plastics, adhesives, and auxiliary equipment for trade and industry. The company serves both domestic and international markets and operates its own laboratory for customer-specific testing including resistance, elasticity, tension, temperature, and viscosity measurements. It distributes products under its own brand across multiple product lines including silicones, epoxies, cyanoacrylates, and MS polymers.

Industry: Adhesives & Sealants Manufacturing

Attack summary

Severity: high — Data has been confirmed as published by the threat actor, indicating successful exfiltration of business data from an industrial manufacturer with international operations; while no specific regulated/personal data categories are confirmed, the publication of proprietary R&D, customer and distributor records constitutes significant business data exposure.

The Ciphbit ransomware group claims to have compromised Marston-Domsel and has published data (disclosed status: data_published), though the leak post does not explicitly detail encryption or specify the volume and nature of exfiltrated data.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business/operational data
Customer-specific test records
Laboratory research results
Product development information
Distributor/partner information

What the group claims

Decades of experience have made MARSTON-DOMSEL a household name in the industry. We will continue to aim for the continuous optimisation of our product range in the future so that we can continue to set standards for functionality and performance. Problems are solved in collaboration with competent technicians, not just in Germany but also worldwide. All internationally acquired experience is incorporated together with research results to the benefit of the customer. The manufacturing facilities fulfil all relevant international standards. Due to optimised manufacturing processes, MARSTON-DOMSEL can pass on the benefits of costeffective production to the customer. We have our own laboratory in which we perform customer-specific tests such as resistance tests, elasticity measurements, tension measurements, temperature tests and viscosity measurements.

Sources

Victim sitemarston-domsel.com

Source

Indexed 3 years 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.