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 12, 2025Minnesota Hospital listed by radianton the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, Minnesota Hospital is reported in United States, a country with 7,392 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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Minnesota Hospital

Claimed by radiant · listed 7 months ago

Age

since listed · data leaked

Status timeline

Listed
Oct 12, 2025
Data leaked

At a glance

Group: radiant
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Oct 12, 2025

About the victim

AI dossier — public-source company profile

The victim is identified only as a hospital located in Minnesota, United States. No further details about the specific institution, its size, or services are available from the leak post or a public site. Minnesota has numerous hospital systems ranging from large academic medical centers to small regional facilities.

Industry: Healthcare / Hospital Services

Attack summary

Severity: high — The target is a healthcare institution, which by nature handles regulated sensitive data (PII, PHI, medical records). Even without confirmed exfiltration details, a claimed breach of a hospital carries inherently high severity due to the sector's critical nature and regulatory exposure (HIPAA). The group's pressure-campaign language implies data is held and will be published.

The Radiant ransomware group claims to have compromised a Minnesota hospital and threatens to publish the hospital's name and begin an escalating pressure campaign if contact is not made within 7 days. No specific data types, encryption, or exfiltration details are confirmed in the post.

high

What the group claims

Unknown. Contact us within 7 days or we will expose your hospitals name, add the view more button and start our pressure process.

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.