Was newhorizonsmedical.org hit by ransomware?

newhorizonsmedical.org was listed by the devman 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 devman ransomware group?

devman 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 newhorizonsmedical.org breach?

devman published data attributed to newhorizonsmedical.org (~236 GB). Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

New Horizons Medical

listed as newhorizonsmedical.org · Claimed by Devman · listed 8 months ago

236 GB

Data size

Age

since listed · data leaked

Status timeline

ListedDec 1, 2025
Data leakeddate unknown

At a glance

Group: Devman
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Dec 1, 2025
Data size: 236 GB

About the victim

AI dossier — public-source company profile

New Horizons Medical is a Massachusetts-based mental health and substance abuse treatment center operating since 2009. The organization provides outpatient addiction treatment (opioid and alcohol), mental health counseling, psychiatry, and day treatment programs. It operates multiple locations across Massachusetts including Fitchburg, Haverhill, Brookline, Framingham, Lynn, Quincy, and Lynn.

Industry: Behavioral Health & Addiction Treatment
Address: 285 Main St, Fitchburg, MA 01420
Founded: 2009

Attack summary

Severity: critical — The disclosed status is 'data_published' with 236 GB exfiltrated from a behavioral health and addiction treatment provider. This almost certainly involves protected health information (PHI) including highly sensitive mental health and substance abuse records, which are among the most regulated and sensitive categories of medical data under HIPAA and 42 CFR Part 2.

The group 'devman' claims to have exfiltrated 236 GB of data from New Horizons Medical and has published the data following a stated ransom demand of $90,000 that apparently went unpaid. No explicit mention of encryption is made in the post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Patient health records (PHI)
Mental health treatment records
Addiction treatment records
Patient portal data
Provider referral information
Psychiatry records
Insurance and billing data

What the group claims

Ransom: 90k 236gb

Sources

Victim sitenewhorizonsmedical.org
Leak posthttp://devmanblggk7ddrtqj3tsocnayow3bwnozab2s4yhv4shpv6ueitjzid.onion#newhorizonsmedicalorg

Source

Indexed 8 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 devman

The devman ransomware group is a recently emerged threat actor that began operations in April 2025, demonstrating a financially motivated criminal enterprise with a focus on opportunistic targeting across multiple sectors and geographic regions. Given the group's recent emergence and limited public documentation, specific details regarding their country of origin, organizational structure, or potential affiliations with established ransomware-as-a-service operations remain unknown to major cybersecurity agencies and researchers. The group's attack methodology and technical capabilities have not been thoroughly documented by reputable security firms, though their targeting patterns suggest a broad opportunistic approach rather than highly specialized tactics. In the brief period since their emergence, devman has reportedly compromised 184 victims across diverse sectors including technology, healthcare, public sector organizations, and agriculture and food production, with primary targeting concentrated in the United States, France, Svalbard and Jan Mayen, Taiwan, and Thailand, though the inclusion of Svalbard and Jan Mayen in their targeting list may indicate data collection anomalies rather than actual operational focus on this remote Arctic territory. As of current reporting, devman appears to remain an active threat, though the lack of detailed technical analysis or law enforcement advisories suggests they may be operating at a relatively low profile compared to more established ransomware groups. The group has been linked to 184 public disclosures across our corpus. First observed on a leak site on April 6, 2025; most recent post February 4, 2026. The operation is currently active.

Timeline of this disclosure

December 1, 2025newhorizonsmedical.org listed by devmanon the group's public leak site

Data size: 236 GB

Other recent disclosures by devman

devman has been linked to 184 public victims on Darkfield. A sample of the most recent:

See the full devman dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,600 disclosures indexed across all operators we track. Geographically, newhorizonsmedical.org is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by devman means newhorizonsmedical.org 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 devman'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.