Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

DALCANS

Claimed by Medusa · listed 9 months ago

1 TB
Data size
25 Employees records
8m
Age
since listed · data leaked

Status timeline

  1. ListedOct 20, 2025
  2. Data leakeddate unknown

At a glance

Group
Medusa
Status
Data leaked
Country
France
Listed on leak site
Oct 20, 2025
Data size
1 TB
Records
25 Employees

About the victim

AI dossier — public-source company profile

DALCANS is a company based in France. No public website content was available to determine the nature of its operations, industry, or scale. The name may correspond to a French firm, but no further verifiable details could be extracted.

Attack summary

Severity: high — 1 TB of data is reported as published (data_published status), indicating confirmed exfiltration at significant scale, even though the specific data categories cannot be verified from available sources.

The Medusa ransomware group claims to have exfiltrated approximately 1 TB of data from DALCANS and has published the data. No further details about the specific data types or encryption activity are available from the truncated leak post.

high

What the group claims

Otherwise, DALCANS will not make any exchange or refund of products ordered. Any product given back will be returned to DALCANS in its original condition and packaging and must include all of the product and its accessories. Any risk associated with returning the product is the responsibility of the Buyer. Failure to follow the procedure outlined above and specified period, the Purchaser cannot make any claim for nonconformity or defect of goods delivered, the products being deemed conformable and free from defect. company is headquartered in 36, rue des Petits Champs, 75002 Paris, France. <25 Employees, The total amount of data leakage is 1 TB.

The leak post

captured from the group's site
Human Verify Human verification required We need to ensure you're a real person. Please solve the captcha below to continue. Verify

Sources

Source

Indexed 9 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About Medusa

Medusa, also known as MedusaLocker, is a financially motivated ransomware group that emerged in November 2022 and has since compromised 568 known victims across multiple countries. The group's origin and specific affiliations remain unclear from publicly available intelligence, though their operational patterns suggest they function as an independent ransomware operation rather than a documented Ransomware-as-a-Service model. Medusa primarily targets organizations in the United States, United Kingdom, Canada, Italy, and Australia, with a focus on business services, healthcare, manufacturing, and technology sectors, employing typical ransomware tactics including data encryption and likely exfiltration for double extortion purposes, though specific technical methodologies and initial access vectors have not been extensively documented in public threat intelligence reports. While the group has maintained a relatively high victim count since its emergence, detailed information about specific notable campaigns, high-profile victims, or major ransom demands has not been widely reported by major cybersecurity firms or law enforcement agencies. As of current intelligence assessments, Medusa appears to remain active in the threat landscape, continuing to target organizations across their established geographic and sectoral preferences. The group has been linked to 635 public disclosures across our corpus. First observed on a leak site on November 15, 2022; most recent post May 5, 2026. The operation is currently active.

Also tracked as: MedusaLocker, MEDUSA LOCKER.

Timeline of this disclosure

  • October 20, 2025DALCANS listed by Medusaon the group's public leak site
Data size
1 TB
Records
25 Employees

Other recent disclosures by Medusa

Medusa has been linked to 635 public victims on Darkfield. A sample of the most recent:

See the full Medusa dossier →

Sector and geography

Geographically, DALCANS is reported in France, a country with 612 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Medusa means DALCANS 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, CERT-FR (France), as required for your jurisdiction.
  • Monitor for the data appearing on Medusa'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.