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Marquis Companies

listed as marquscompanies.com · Claimed by Lynx · listed 9 months ago

8m
Age
since listed · data leaked

Status timeline

  1. ListedOct 21, 2025
  2. Data leakeddate unknown

At a glance

Group
Lynx
Status
Data leaked
Country
United States
Listed on leak site
Oct 21, 2025

About the victim

AI dossier — public-source company profile

Marquis Companies is a healthcare organization headquartered in Milwaukie, Oregon, founded in 1989. The company provides assisted living, rehabilitation, Alzheimer's care, and residential care services. It operates within the senior care and post-acute healthcare sector in the United States.

Industry
Healthcare & Senior Living Services
Address
Milwaukie, Oregon, United States
Founded
1989

Attack summary

Severity: critical — The victim is a healthcare and senior living provider handling regulated medical and personal data for vulnerable populations (elderly, Alzheimer's patients, rehabilitation patients), making any exfiltration likely to involve HIPAA-covered PHI and sensitive PII at scale. Data has been published, confirming exfiltration.

The Lynx ransomware group claims to have attacked Marquis Companies and has published data ('data_published' status), indicating exfiltration of company data. The specific data types and volume have not been detailed in the leak post.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Patient/resident records
  • Healthcare services data
  • Assisted living records
  • Rehabilitation services data
  • Alzheimer care records
  • Residential care records

What the group claims

Marquis Companies offers healthcare services. The Company offers assisted living services, rehabilitation services, alzheimer care, and residential care services. Marquis Companies founded in 1989 and is headquartered in Milwaukie, Oregon.

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.

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Disclosure context

About Lynx

Lynx is a relatively new ransomware group that emerged in July 2024, operating with apparent financial motivations and demonstrating rapid scaling capabilities with 397 documented victims within their first few months of operation. The group's origin and specific affiliations remain unclear due to their recent emergence, though their targeting patterns suggest a sophisticated operation that may operate independently rather than as a traditional Ransomware-as-a-Service model. Based on their victim distribution, Lynx appears to employ broad-spectrum targeting methodologies focusing heavily on English-speaking countries, with the United States, United Kingdom, Canada, Germany, and Australia representing their primary geographic targets, while concentrating their attacks on manufacturing, business services, technology, and transportation/logistics sectors, though specific technical details regarding their initial access vectors, encryption methods, and data exfiltration practices have not yet been extensively documented by major security research organizations. Due to the group's recent emergence, there are no widely reported major campaigns or high-profile incidents that have gained significant public attention from law enforcement agencies or established threat intelligence firms. As of late 2024, Lynx appears to remain active with no reported law enforcement disruptions or operational changes. The group has been linked to 414 public disclosures across our corpus. First observed on a leak site on July 29, 2024; most recent post June 18, 2026. The operation is currently active.

Timeline of this disclosure

  • October 21, 2025marquscompanies.com listed by Lynxon the group's public leak site

Other recent disclosures by Lynx

Lynx has been linked to 414 public victims on Darkfield. A sample of the most recent:

See the full Lynx dossier →

Sector and geography

Geographically, marquscompanies.com is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Lynx means marquscompanies.com 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, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on Lynx'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.