Was Heritage Mechanical LLC hit by ransomware?

Heritage Mechanical LLC was listed by the Dragonforce 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 Dragonforce ransomware group?

Dragonforce 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 Heritage Mechanical LLC breach?

Dragonforce published data attributed to Heritage Mechanical LLC. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Heritage Mechanical LLC

Claimed by Dragonforce · listed 6 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJul 15, 2026
Data leakeddate unknown

At a glance

Group: Dragonforce
Status: Data leaked
Country: United States
Sector: Business Services
Listed on leak site: Jul 15, 2026

About the victim

AI dossier — public-source company profile

Heritage Mechanical LLC is a mechanical and plumbing contractor based in Crofton, Maryland, specializing in large commercial and institutional construction projects across the mid-Atlantic region. Established in 2012 with roots in a family steamfitting tradition spanning over 100 years, the company has grown from three employees to become one of the fastest-growing firms in the DMV area.

Industry: Mechanical & Plumbing Contracting
Address: 2147 Priest Bridge Drive, Suite 5, Crofton, MD 21114
Employees: 51-200
Founded: 2012

Attack summary

Severity: low — No proof files or screenshots are advertised; no specific data exfiltration or encryption impact is claimed in the available post excerpt; disclosure status is 'data_published' but the actual leaked content and scope are not detailed here.

The dragonforce group claims to have attacked Heritage Mechanical LLC. The post does not specify whether data was exfiltrated, encrypted, or both, nor does it detail what data classes are at stake.

low

What the group claims

Built on a family legacy of proud steamfitters dating back to over 100 years, Heritage Mechanical was established in 2012 to provide quality mechanical service to the commercial construction industry. Opening its doors with only three employees and a master plan, the company has since grown rapidly to become one of the fastest growing mechanical construction firms serving the DMV.

Sources

Source

Indexed 6 hours 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 Dragonforce

Dragonforce is a relatively new ransomware group that emerged in December 2023, operating with apparent financial motivations based on their targeting patterns and victim selection. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their rapid accumulation of 439 documented victims suggests either sophisticated capabilities or possible connections to existing ransomware infrastructure. Based on their targeting patterns across diverse sectors including manufacturing, business services, technology, and construction, Dragonforce appears to employ opportunistic attack methodologies, though specific initial access vectors, encryption methods, and extortion tactics have not been publicly detailed by major security firms or law enforcement agencies. The group has demonstrated a preference for targeting organizations primarily in English-speaking countries and Western Europe, with the United States, United Kingdom, Germany, Australia, and Italy representing their most frequent victim locations, suggesting possible language capabilities or geographic operational preferences. As of current reporting, Dragonforce appears to remain active given their recent emergence and ongoing victim acquisition, though the lack of detailed public analysis from major threat intelligence organizations indicates either operational security measures that have limited researcher visibility or that the group has not yet conducted sufficiently high-profile attacks to warrant extensive public documentation by CISA, FBI, or established security research firms. The group has been linked to 632 public disclosures across our corpus. First observed on a leak site on December 13, 2023; most recent post July 15, 2026. The operation is currently active.

Also tracked as: DRAGON FORCE.

Timeline of this disclosure

July 15, 2026Heritage Mechanical LLC listed by Dragonforceon the group's public leak site

Other recent disclosures by Dragonforce

Dragonforce has been linked to 632 public victims on Darkfield. A sample of the most recent:

See the full Dragonforce dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, Heritage Mechanical LLC is reported in United States, a country with 3,115 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Dragonforce means Heritage Mechanical LLC 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 Dragonforce'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.