Was OneSource Medical Group hit by ransomware?

OneSource Medical Group was listed by the genesis ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the genesis ransomware group?

genesis is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the OneSource Medical Group breach?

genesis published data attributed to OneSource Medical Group. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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One Source Medical Supplies

listed as OneSource Medical Group · Claimed by Genesis · listed 3 months ago

Age

since listed · data leaked

Status timeline

ListedMar 7, 2026
Data leakeddate unknown

At a glance

Group: Genesis
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Mar 7, 2026

About the victim

AI dossier — public-source company profile

One Source Medical Group, LLC (operating as One Source Medical Supplies) is a U.S.-based, ACHC-accredited home medical supply company specializing in diabetes care, enteral nutrition, incontinence, and related products. The company delivers supplies directly to patients, accepts most insurances, and reports serving over 10,000 patients nationwide. It operates a 24/7 patient portal and provides bilingual clinical support.

Industry: Home Medical Equipment & Supplies (Diabetes Care)

Attack summary

Severity: critical — The victim is an ACHC-accredited medical supply company serving 10,000+ patients nationwide, handling regulated health information (PHI/PII) including diagnoses, insurance, dates of birth, and treatment-related data. The disclosed status is 'data_published', indicating actual exfiltration and release of likely HIPAA-covered patient data at scale.

The Genesis ransomware group has listed OneSource Medical Group under a 'data_published' disclosure, indicating that data has been published or made available following the attack. The leak post does not specify whether encryption occurred or detail the precise data types exfiltrated.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Patient personally identifiable information (PII)
Patient health/medical records
Insurance verification data
Date of birth records
Contact information (phone, email, address)
Patient portal credentials/account data
Case manager records

What the group claims

A provider of RCM and billing services

The leak post

captured from the group's site

GENESIS GENESIS Archive Tags About GENESIS [email protected] Pequod Associates A global leader in the provision of Marine Claims TPA and Recovery services. 2026-05-11 · 1min Pequod Associates HostBooks (HOT!) An accounting software provider. 2026-05-09 · 1min HostBooks (HOT!) Palo Architecture and Planning. 2026-05-09 · 1min Palo Ben F. Barcus and associates pllc A law firm from Tacoma, WA. 2026-05-09 · 1min Ben F. Barcus and associates pllc Rain Makers Solutions Conducting training sessions, engaging with stakeholders, and organizing meetings and events. 2026-05-08 · 1min Rain Makers Solutions Van Atta Engineering A civil engineering and surveying firm located at 570 Congress Park Dr, Dayton, Ohio. 2026-05-08 · 1min Van Atta Engineering Prescott & Holden A legal firm dedicated to safeguard the rights of its clients 2026-05-08 · 1min Prescott & Holden The American Board of Preventive Medicine A healthcare certification organization. 2026-05-08 · 1min The American Board of Preventive Medicine Integrated Process Engineers & Constructors. Specializes in custom modular process systems, offering a wide range of products including bioreactors, filtration systems, and utility sta…

Sources

Victim siteonesourcemg.com
Leak posthttp://genesis6ixpb5mcy4kudybtw5op2wqlrkocfogbnenz3c647ibqixiad.onion/6243244f2cab542be965/

Source

Indexed 3 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 genesis

Genesis is a recently emerged ransomware group that was first observed in October 2025, operating with apparent financial motivations based on their targeting patterns across multiple high-value sectors. The group has demonstrated a relatively aggressive operational tempo since emergence, accumulating 54 documented victims within a short timeframe. Given the limited public documentation available from established threat intelligence sources regarding this newly identified group, specific details about their country of origin, organizational structure, and precise attack methodologies remain under investigation by security researchers. The group's targeting patterns indicate a preference for victims in the United States and United Kingdom, with additional activity observed in Malaysia and Spain, suggesting either a broad operational scope or the use of automated targeting tools that do not discriminate by geography. Their sector targeting reveals a focus on healthcare, manufacturing, business services, and financial services organizations, indicating they may prioritize entities with both high revenue potential and critical operational dependencies that increase pressure for ransom payment. Due to the group's recent emergence and limited reporting from major threat intelligence organizations such as Mandiant, CISA, or FBI, comprehensive details regarding their specific encryption methods, initial access vectors, data exfiltration practices, or notable high-profile campaigns have not yet been publicly documented. Genesis remains an active threat as of current reporting, though their operational longevity and potential connections to established ransomware ecosystems continue to be assessed by the cybersecurity community. The group has been linked to 95 public disclosures across our corpus. First observed on a leak site on October 21, 2025; most recent post June 6, 2026. The operation is currently active.

Timeline of this disclosure

March 7, 2026OneSource Medical Group listed by genesison the group's public leak site

Other recent disclosures by genesis

genesis has been linked to 95 public victims on Darkfield. A sample of the most recent:

See the full genesis dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,780 disclosures indexed across all operators we track. Geographically, OneSource Medical Group is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

If your organisation is affected

A listing by genesis means OneSource Medical 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.
Monitor for the data appearing on genesis'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.