Was RADIX hit by ransomware?

RADIX was listed by the Sarcoma ransomware operation (Switzerland), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Sarcoma ransomware group?

Sarcoma is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the RADIX breach?

Sarcoma published data attributed to RADIX (~2 TB). Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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RADIX Schweizerische Gesundheitsstiftung

listed as RADIX · Claimed by Sarcoma · listed 1 year ago

2 TB

Data size

13m

Age

since listed · data leaked

Status timeline

ListedJun 19, 2025
Data leakeddate unknown

At a glance

Group: Sarcoma
Status: Data leaked
Country: Switzerland
Listed on leak site: Jun 19, 2025
Data size: 2 TB

About the victim

AI dossier — public-source company profile

RADIX is a Swiss non-profit foundation established in 1972 through the merger of the Swiss Foundation for Health Education with the RADIX Community Health Promotion Association in 1992. Operating nationally with regional presence, RADIX promotes health through eight competence centers covering healthy municipalities, schools, nutrition, mental health, and substance abuse prevention.

Industry: Public Health & Health Promotion
Founded: 1972

Attack summary

Severity: medium — Confirmed exfiltration of 2 TB from a health promotion organization handling school and municipal health programs; likely contains internal communications and potentially some sensitive health/education data, but no specific evidence of regulated PII at scale or critical infrastructure impact. Data size and organizational scope indicate moderate sensitivity.

The Sarcoma group claims to have exfiltrated 2 TB of data from RADIX. The leak post provides no specific details on data categories or operational impact beyond the volume claim.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Files (unspecified content)

What the group claims

RADIX RADIX has existed as a non-profit, private-law foundation since 1972. The Swiss Foundation for Health Education, founded at that time, merged with the RADIX Community Health Promotion Association in 1992. The purpose of RADIX is to encourage municipal and cantonal authorities and decision-makers in organizations to recognize health promotion as an important ongoing task and implement appropriate measures. The strategic management of RADIX is the responsibility of the Foundation Board, which appoints the Executive Board, which is responsible for operational management.Geo: Switzerland - Leak size: 2 TB - Contains: Files

Sources

Victim siteradix.ch

Source

Indexed 1 year 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.

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Disclosure context

About Sarcoma

Sarcoma is a relatively new ransomware group that emerged in October 2024, operating with apparent financial motivations and demonstrating a broad international targeting approach with at least 140 documented victims across multiple countries and industry sectors. The group's origin and affiliations remain unclear due to its recent emergence, with no publicly documented connections to established ransomware families or confirmation of whether they operate as an independent entity or through a Ransomware-as-a-Service model. Limited public information is available regarding Sarcoma's specific attack methodologies, initial access vectors, or technical capabilities, though their targeting patterns suggest opportunistic rather than highly selective victim selection across diverse industries including manufacturing, business services, agriculture and food production, and technology sectors. The group has shown a particular focus on victims in the United States while also maintaining operations against targets in Italy, Canada, Germany, and Australia, though no specific high-profile attacks or record ransom demands have been publicly documented by major security firms or law enforcement agencies. Given the group's recent emergence in late 2024, Sarcoma appears to remain active with no reported law enforcement disruptions or confirmed rebranding activities at this time. The group has been linked to 150 public disclosures across our corpus. First observed on a leak site on October 9, 2024; most recent post May 12, 2026. The operation is currently active.

Also tracked as: Sarcoma Ransomware Group.

Timeline of this disclosure

June 19, 2025RADIX listed by Sarcomaon the group's public leak site

Data size: 2 TB

Other recent disclosures by Sarcoma

Sarcoma has been linked to 150 public victims on Darkfield. A sample of the most recent:

See the full Sarcoma dossier →

Sector and geography

Geographically, RADIX is reported in Switzerland, a country with 154 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Sarcoma means RADIX appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, NCSC-CH (Switzerland), as required for your jurisdiction.
Monitor for the data appearing on Sarcoma's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.