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Oasis Legal Group

Claimed by Everest · listed 3 days ago

2d
Age
since listed · data leaked

Status timeline

  1. ListedAug 5, 2026
  2. Data leakeddate unknown

At a glance

Group
Everest
Status
Data leaked
Country
United States
Sector
Professional Services
Listed on leak site
Aug 5, 2026

About the victim

AI dossier — public-source company profile

Oasis Legal Group is a multi-office law firm specializing in business, family, and immigration law. Operating across six locations in Wisconsin, Florida, Texas, and Michigan, the firm represents approximately 10 attorneys and serves clients nationwide in immigration matters and regionally in business and family law.

Industry
Legal Services - Immigration, Business & Family Law
Address
Multiple locations: Madison (2450 Rimrock Rd, Suite 203, Madison, WI 53713); Milwaukee (1433 North Water Street, Suite 400 & 500, Milwaukee, WI 53202); Miami (8333 NW 53rd Street, Suite 450, Doral, FL 33166); Katy (2717 Commercial Ctr Blvd, Suite E200, Katy, TX 77494); Grand Rapids (250 Monroe Ave. NW, Suite 400, Grand Rapids, MI 49503); Orlando (6900 Tavistock Lakes Blvd, Suite 400, Orlando, FL 32827)
Employees
51-200

Attack summary

Severity: medium — Law firm breach with likely access to privileged client information, case files, and legal work product. However, no proof files or screenshots are advertised, no data size is disclosed, and no specific details of exfiltration are provided. Severity is elevated due to the sensitive nature of legal/immigration client data but tempered by lack of published proof or data inventory details.

The everest group claims to have compromised Oasis Legal Group. The leak post provided contains no substantive details regarding what data was exfiltrated, encrypted, or the scope of the attack.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • Client records
  • Attorney work product
  • Case files
  • Confidential legal documents

Original description

AI-summarised, not from the leak post

N/A

Sources

Source

Indexed 3 days 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 388 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post August 5, 2026. The operation is currently active.

Timeline of this disclosure

  • August 5, 2026Oasis Legal Group listed by Evereston the group's public leak site

Other recent disclosures by Everest

Everest has been linked to 388 public victims on Darkfield. A sample of the most recent:

See the full Everest dossier →

Sector and geography

This disclosure adds to ransomware activity in the Professional Services sector, which has 13 disclosures indexed across all operators we track. Geographically, Oasis Legal Group is reported in United States, a country with 3,159 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Everest means Oasis Legal Group 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.