Disclosure context

About Cloak

Cloak is a relatively new ransomware group that emerged in August 2023, operating with primarily financial motivations and demonstrating a broad international targeting scope with 162 documented victims across multiple sectors. The group's origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest they may operate independently rather than as part of a larger ransomware-as-a-service ecosystem. Limited public documentation exists regarding their specific attack methodologies, encryption techniques, or data exfiltration practices, though their targeting patterns indicate sophisticated capabilities to compromise organizations across diverse sectors including business services, technology, healthcare, and manufacturing. The group has demonstrated a preference for targeting victims in English-speaking countries and Western Europe, with the United States, Germany, United Kingdom, Canada, and Italy representing their primary geographic focus areas. Cloak appears to remain active as of current reporting, though the relative scarcity of detailed public analysis from major threat intelligence firms suggests either operational security effectiveness or a lower profile compared to more established ransomware operations. The group has been linked to 162 public disclosures across our corpus. First observed on a leak site on August 24, 2023; most recent post February 24, 2026. The operation is currently active.

Timeline of this disclosure

February 19, 2026Dinnebiergruppe.de listed by Cloakon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, Dinnebiergruppe.de 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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Dinnebier Gruppe

listed as Dinnebiergruppe.de · Claimed by Cloak · listed 3 months ago

Age

since listed · data leaked

Status timeline

Listed
Feb 19, 2026
Data leaked

At a glance

Group: Cloak
Status: Data leaked
Country: Germany
Sector: Not Found
Listed on leak site: Feb 19, 2026

About the victim

AI dossier — public-source company profile

Dinnebier Gruppe is a German multi-brand automotive dealer group headquartered in Berlin, operating multiple locations across Berlin and Brandenburg. The group sells and finances new and used vehicles across brands including Mercedes-Benz, Audi, Porsche, Volkswagen, Ford, Suzuki, Kia, and Land Rover, and provides workshop, leasing, insurance, and fleet services. According to the group's leak post, the company also has interests in real estate management, hotel operations, and petrol stations.

Industry: Automotive Dealership & Vehicle Services
Address: Holzhauser Str. 10-12, 13509 Berlin, Germany (primary listed location; multiple branch addresses across Berlin and Brandenburg)

Attack summary

Severity: high — Data has been published by the threat actor, indicating confirmed exfiltration. As a multi-location automotive dealer group, the company likely holds significant volumes of customer PII, financing/credit data, and commercial client records, making the exposure materially significant even without a stated data size.

The Cloak ransomware group claims to have attacked Dinnebiergruppe.de and has published data (disclosed status: data_published), though no specific data volume or ransom demand was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Customer records
Vehicle sales and financing data
Leasing and insurance documents
Fleet and commercial client data
Internal business documents
Potentially real estate and hotel operational records

Original description

AI-summarised, not from the leak post

"Dinnebiergruppe.de" is a German company incorporated into the automobile industry. They are authorized dealers for major car brands including Mercedes-Benz, smart, Audi, Porsche, and Volkswagen Commercial Vehicles. The company offers a broad range of services including car sales, leasing, financing, insurance, and extensive car maintenance. Moreover, they are also involved in real estate management, hotel industry, and operate petrol stations.

Sources

Victim siteDinnebiergruppe.de

Source

Indexed 3 months 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.