Disclosure context

About radiant

Based on publicly available information, Radiant is an emerging ransomware group that was first observed in October 2025, representing one of the newer threats in the ransomware landscape with a relatively small footprint of eight documented victims to date. The group appears to be financially motivated, following the typical ransomware business model of encrypting victim data and demanding payment for decryption keys. Limited intelligence suggests the group operates independently rather than as a ransomware-as-a-service operation, though insufficient data exists to definitively establish their country of origin or potential affiliations with other cybercriminal organizations. Due to the group's recent emergence and limited victim count, specific details regarding their attack methodology, initial access vectors, and technical capabilities remain largely undocumented by major security research organizations. Their targeting pattern shows a geographic focus on Western nations including the United States, Netherlands, Germany, United Kingdom, and Finland, with victim organizations spanning healthcare, transportation and logistics, agriculture and food production, and consumer services sectors. Given the group's recent emergence in late 2025, there are no documented major campaigns, high-profile attacks, or law enforcement actions against Radiant at this time. The group appears to remain active as of current reporting, though their limited operational history and small victim count suggest they are either in early operational phases or operating at a relatively small scale compared to established ransomware enterprises. The group has been linked to 8 public disclosures across our corpus. First observed on a leak site on October 12, 2025; most recent post October 29, 2025. The operation is currently inactive.

Timeline of this disclosure

October 16, 2025Docurail listed by radianton 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, Docurail is reported in FI.

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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Docurail

Claimed by radiant · listed 7 months ago

Age

since listed · data leaked

Status timeline

Listed
Oct 16, 2025
Data leaked

At a glance

Group: radiant
Status: Data leaked
Country: FI
Sector: Not Found
Listed on leak site: Oct 16, 2025

About the victim

AI dossier — public-source company profile

Docurail is a Finnish company that provides digital solutions for railway compliance, converting complex regulatory paperwork into streamlined digital workflows. The company appears to serve the rail sector with software-based document management and compliance tools. No further operational details are publicly available from the provided sources.

Industry: Railway Compliance & Document Management Software

Attack summary

Severity: high — Data has been published (data_published status confirmed), indicating confirmed exfiltration. The railway compliance sector may handle regulated operational and safety-related documents, elevating severity. Lack of detail on scale prevents a critical rating.

The Radiant ransomware group claims to have attacked Docurail and has published data (disclosed status: data_published), suggesting exfiltration of company data, though specific details on encryption or the exact nature of exfiltrated data are not described in the truncated post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Compliance documentation
Digital workflow records
Railway regulatory filings

What the group claims

Docurail simplifies railway compliance, transforming complex paperwork into seamless digital workflows to...

Source

Indexed 7 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.