Disclosure context

About nightspire

Nightspire is a ransomware group that first emerged in March 2025 and appears to be primarily financially motivated, having targeted over 215 victims in a relatively short operational timeframe. The group's origin and affiliations remain unclear due to limited public documentation from major cybersecurity organizations, though their targeting patterns suggest a broad opportunistic approach rather than nation-state backing. Based on available victim data, Nightspire appears to employ common ransomware attack vectors targeting organizations across multiple sectors, with a particular focus on manufacturing, technology, healthcare, and construction industries, while demonstrating a geographic preference for victims in the United States, India, Taiwan, France, and Hong Kong. The group's rapid victim acquisition rate since their March 2025 emergence suggests an active and potentially effective operational capability, though specific technical details about their attack methodology, encryption techniques, or extortion tactics have not been publicly documented by major threat intelligence firms. Given the recent emergence of this group and limited public reporting from established cybersecurity organizations like CISA, FBI, or Mandiant, Nightspire remains an active threat with insufficient public documentation to fully assess their operational sophistication or organizational structure. The group has been linked to 265 public disclosures across our corpus. First observed on a leak site on March 12, 2025; most recent post May 18, 2026. The operation is currently active.

Timeline of this disclosure

April 3, 2026Dubosson Frères SA listed by nightspireon 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, Dubosson Frères SA is reported in CH, a country with 27 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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Dubosson Frères SA

Claimed by nightspire · listed 2 months ago

47d

Age

since listed · data leaked

Status timeline

Listed
Apr 3, 2026
Data leaked

At a glance

Group: nightspire
Status: Data leaked
Country: CH
Sector: Not Found
Listed on leak site: Apr 3, 2026

About the victim

AI dossier — public-source company profile

Dubosson Frères SA is a Swiss artisanal woodworking company based in Troistorrents, Valais. The company specialises in custom joinery, kitchen and bathroom fittings, staircases, parquet flooring, timber-frame construction, and bespoke furniture, with all products manufactured in their own workshop. They serve both residential and commercial clients in the Valais region.

Industry: Artisanal Woodworking & Interior Joinery
Address: Chemin des Dents du Midi 8, 1872 Troistorrents, Valais, Switzerland

Attack summary

Severity: medium — Data is reported as published by the group, suggesting exfiltration occurred, but no details on data type, volume, or sensitivity are available from the leak post. The victim is a small artisanal SME, limiting likely scale of regulated data exposure.

The Nightspire ransomware group claims to have attacked Dubosson Frères SA and lists the disclosure status as data_published, indicating exfiltration and publication of company data; however, the leak post content is currently unavailable, leaving specific claims unverified.

medium

What the group claims

Data is not available now.

Sources

Victim sitewww.menuiseries-dubosson.ch

Source

Indexed 2 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.