Ransomware victim disclosure

O'Brien Engineering & Architecture

listed as obrieneng.com · Claimed by incransom · listed 1 day ago

Age

since listed · data leaked

Status timeline

Listed
Jun 5, 2026
Data leaked

At a glance

Group: incransom
Status: Data leaked
Country: US
Sector: Construction
Listed on leak site: Jun 5, 2026

About the victim

AI dossier — public-source company profile

O'Brien Engineering & Architecture (OEI) is a mission-driven A/E firm founded in 1987, specializing in resilient facility design across horizontal and vertical infrastructure. They serve federal, state, and local sectors with expertise in military installations, healthcare facilities, water infrastructure, and critical facility assets across the U.S. and territories.

Industry: Engineering & Architecture Services
Founded: 1987

Attack summary

Severity: high — Confirmed exfiltration of confidential government and military project data from a cleared federal contractor. Exposure of NDA-protected materials, military installation designs, and government system references (VA, SAM.gov) constitutes significant operational and security risk to U.S. infrastructure and defense systems.

Incransom claims exfiltration of confidential contract documents, NDA materials, and files related to government and military work, including references to VA and SAM.gov credentials or data.

high

Data the group says was taken

AI dossier — extracted from the leak post

confidential contracts
NDA documents
government/military project files
VA system access/credentials
SAM.gov records

What the group claims

contract nda confidential gov\dot\military\va\sam.gov other

Sources

Source

Indexed 1 day 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 incransom

Incransom is a ransomware group that emerged in August 2023, operating with primarily financial motivations as evidenced by their targeting of high-value sectors across multiple developed nations. The group's origin and specific affiliations remain undocumented by major threat intelligence organizations, though their operational patterns suggest they likely operate independently rather than as a ransomware-as-a-service model. With 734 documented victims, Incransom has demonstrated a preference for targeting organizations in the United States, Canada, United Kingdom, Germany, and Australia, with particular focus on healthcare, technology, business services, and manufacturing sectors, though their attack methodology and specific technical capabilities have not been extensively documented by established security researchers or government agencies. The group's notable campaigns and specific high-profile victims have not been publicly detailed by CISA, FBI, Mandiant, or other reputable threat intelligence sources, suggesting either operational security effectiveness or limited visibility into their most significant operations. Based on available intelligence, Incransom appears to remain active as of recent reporting periods, though comprehensive analysis of their current operational status requires additional documentation from established threat intelligence sources. The group has been linked to 824 public disclosures across our corpus. First observed on a leak site on August 9, 2023; most recent post June 6, 2026. The operation is currently active.

Also tracked as: inc ransom.

Timeline of this disclosure

June 5, 2026obrieneng.com listed by incransomon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Construction sector, which has 415 disclosures indexed across all operators we track. Geographically, obrieneng.com is reported in US, a country with 2,714 ransomware disclosures in our corpus.

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.