Was rexmoore.com hit by ransomware?

rexmoore.com was listed by the Embargo 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 Embargo ransomware group?

Embargo 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 rexmoore.com breach?

Embargo published data attributed to rexmoore.com. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Rex Moore Group, Inc.

listed as rexmoore.com · Claimed by Embargo · listed 2 years ago

26m

Age

since listed · data leaked

Status timeline

ListedMay 8, 2024
Data leakeddate unknown

At a glance

Group: Embargo
Status: Data leaked
Country: United States
Sector: Business Services
Listed on leak site: May 8, 2024

About the victim

AI dossier — public-source company profile

Rex Moore Group, Inc. is a family-owned electrical contracting and engineering firm founded in 1922 and headquartered in Sacramento, California. They provide design/build and bid services for electrical and low-voltage projects, including construction, maintenance, instrumentation, controls, and EV charging installations across commercial and healthcare sectors.

Industry: Electrical Contracting & Engineering
Address: 6001 Outfall Circle, Sacramento, CA 95828
Employees: 101-500
Founded: 1922

Attack summary

Severity: high — Confirmed exfiltration of SQL databases and substantial business documents from an operational contractor serving healthcare and critical infrastructure clients (hospitals, utilities). No proof files published yet, but disclosure imminent and data includes structured business records.

Embargo claims to have exfiltrated SQL databases and a large volume of documents from Rex Moore. The group states data will be published soon but has not yet disclosed specifics of the data categories.

high

Data the group says was taken

AI dossier — extracted from the leak post

SQL databases
Business documents
Project files
Client information

What the group claims

Founded in 1922 and headquartered in Sacramento, California, Rex Moore is a family-owned and managed company, providing electrical and integrated systems engineering, manufacturing, construction and maintenance. The company performs both design/build and bid work for most electrical and low voltage projects. - DATA will be available soon. SQL Databases + big amount of Documents.

Sources

Victim siterexmoore.com
Leak posthttp://embargobe3n5okxyzqphpmk3moinoap2snz5k6765mvtkk7hhi544jid.onion/#/post/13

Source

Indexed 2 years 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 Embargo

Embargo is a ransomware group that emerged in April 2024, operating with primarily financial motivations and demonstrating a focus on high-value targets across multiple sectors. The group has been observed targeting victims predominantly in the United States, Singapore, India, and France, with particular emphasis on technology, healthcare, manufacturing, business services, and financial sectors. Given the group's recent emergence and limited public documentation from major threat intelligence sources, specific details about their country of origin, operational structure, and technical methodologies remain largely unconfirmed by established security research organizations. With 37 known victims identified since their emergence, Embargo appears to follow established ransomware operational patterns typical of financially-motivated cybercriminal groups, though comprehensive analysis of their attack vectors, encryption methods, and extortion tactics has not yet been extensively documented by major cybersecurity firms or government agencies. The group's targeting of critical infrastructure sectors including healthcare and financial services aligns with broader ransomware trends observed throughout 2024, though specific notable campaigns or high-profile attacks have not been widely reported in public threat intelligence reporting. As of current observations, Embargo appears to remain active, though the limited timeframe since their emergence and sparse public documentation makes definitive assessment of their operational status challenging without additional confirmed reporting from established threat intelligence sources. The group has been linked to 40 public disclosures across our corpus. First observed on a leak site on April 21, 2024; most recent post June 30, 2026. The operation is currently active.

Timeline of this disclosure

May 8, 2024rexmoore.com listed by Embargoon the group's public leak site

Other recent disclosures by Embargo

Embargo has been linked to 40 public victims on Darkfield. A sample of the most recent:

See the full Embargo 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, rexmoore.com is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Embargo means rexmoore.com 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 Embargo'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.