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La Perouse

Claimed by Everest · listed 11 months ago

11m
Age
since listed · data leaked

Status timeline

  1. ListedAug 8, 2025
  2. Data leakeddate unknown

At a glance

Group
Everest
Status
Data leaked
Country
United States
Listed on leak site
Aug 8, 2025

About the victim

AI dossier — public-source company profile

La Perouse is a medical billing and revenue cycle management company offering billing, coding, and collections services to healthcare providers. They position themselves as a boutique physician management company helping practices optimize revenue recovery and compliance.

Industry
Medical Billing & Revenue Cycle Management
Address
The Webaashi Building, 12345 King Street, Melbourne Victoria 3000 Australia

Attack summary

Severity: high — La Perouse handles healthcare billing and coding data for multiple medical practices, which likely includes PHI (Protected Health Information) subject to HIPAA. Confirmed data publication by ransomware group indicates exfiltration of regulated healthcare data at scale.

The Everest group claims to have attacked La Perouse and published data from the breach. No specific details on encryption vs. exfiltration or data types are provided in the truncated leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • medical billing records
  • patient information
  • coding data
  • claims processing records
  • client healthcare practice data

What the group claims

La Perouse Is your One-Stop-Shop for complete revenue cycle management. Let us help you focus on what you do best.

Sources

Source

Indexed 11 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 Everest

Everest is a financially-motivated ransomware group that emerged in September 2021, operating with a focus on profit-driven extortion campaigns against organizations primarily in the United States and Europe. The group's country of origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest they likely operate as an independent entity rather than a formal ransomware-as-a-service model. Limited public documentation exists regarding Everest's specific attack methodologies, initial access vectors, or technical capabilities, though their victim profile indicates they employ standard ransomware tactics targeting a diverse range of sectors including healthcare, technology, business services, and manufacturing organizations. Since their emergence, Everest has claimed responsibility for attacks against 339 victims across multiple countries, with the United States, United Kingdom, Italy, Germany, and Spain representing their primary geographic targets, though no specific high-profile incidents or major ransoms have been publicly documented by law enforcement or major security firms. As of current reporting, Everest appears to remain an active threat actor, though the limited public intelligence available suggests they operate as a lower-tier ransomware group compared to more prominent and well-documented criminal organizations. The group has been linked to 369 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post May 29, 2026. The operation is currently active.

Timeline of this disclosure

  • August 8, 2025La Perouse listed by Evereston the group's public leak site

Other recent disclosures by Everest

Everest has been linked to 369 public victims on Darkfield. A sample of the most recent:

See the full Everest dossier →

Sector and geography

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

If your organisation is affected

A listing by Everest means La Perouse 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 Everest'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.