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Geass

Claimed by Sarcoma · listed 1 year ago

156 GB
Data size
15m
Age
since listed · data leaked

Status timeline

  1. ListedMar 29, 2025
  2. Data leakeddate unknown

At a glance

Group
Sarcoma
Status
Data leaked
Country
Italy
Sector
Healthcare
Listed on leak site
Mar 29, 2025
Data size
156 GB

About the victim

AI dossier — public-source company profile

Geass is an Italian dental medical device company based in Pozzuoli del Friuli that specializes in dental implants and CAD-CAM technology for dental professionals and patients. The company operates a dedicated professional platform for dental industry practitioners.

Industry
Dental Medical Devices & CAD-CAM Technology
Address
Pozzuoli del Friuli, Italy

Attack summary

Severity: high — Confirmed exfiltration of 156 GB of data from a healthcare company handling dental patient information and professional data; significant business and personal data exposure in regulated sector.

The Sarcoma group claims to have exfiltrated 156 GB of data from Geass, including files and SQL databases. The group has published the data without stated ransom demands.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • SQL databases
  • Company files
  • Potentially patient records
  • Professional platform data

What the group claims

Geass Geass provides dental implants and CAD-CAM technology for patients looking for the perfect smile. Professionals in the dental industry can access a dedicated platform within Geass' world. The company is based in Pozzuolo del Friuli, Italy.Geo: Italy - Leak size: 156 GB Archive - Contains: Files, SQL

Sources

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

  • March 29, 2025Geass listed by Sarcomaon the group's public leak site
Data size
156 GB

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

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,600 disclosures indexed across all operators we track. Geographically, Geass is reported in Italy, a country with 635 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Sarcoma means Geass 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, CSIRT Italia (Italy), 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.