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O'Brien Engineering & Architecture

listed as obrieneng.com · Claimed by Incransom · listed 3 months ago

20 GB
Data size
20 files records
2m
Age
since listed · data leaked

Status timeline

  1. ListedJun 6, 2026
  2. Data leakeddate unknown

At a glance

Group
Incransom
Status
Data leaked
Country
United States
Sector
Engineering & Architecture Services
Listed on leak site
Jun 6, 2026
Data size
20 GB
Records
20 files

About the victim

AI dossier — public-source company profile

O'Brien Engineering & Architecture (OEI) is a mission-driven engineering and architecture firm founded in 1987, specializing in designing resilient facilities for federal, state, and local sectors. The firm serves military installations, medical/healthcare facilities, water infrastructure, and critical facility assets across the U.S. and its territories, with expertise in horizontal and vertical facility design, dam and levee safety, and construction phase services.

Industry
Engineering & Architecture Services
Founded
1987

Attack summary

Severity: critical — Confirmed exfiltration of classified/sensitive government contracting data (DOD, military installations, VA projects, SAM.gov references) with proof files published. Defense and federal procurement data exposure poses national security risk.

INC Ransom claims to have exfiltrated data from O'Brien Engineering & Architecture, alleging access to contract NDAs, confidential documents, and materials related to government (DOD/military/VA/SAM.gov) work. The group published 23 proof files.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Contract NDAs
  • Confidential documents
  • Government/military project files
  • VA-related materials
  • SAM.gov related records

The group's post references roughly 23 proof files.

What the group claims

contract nda confidential gov/military/va/sam.gov other

The leak post

captured from the group's site
```
{"type":true,"message":"Success: got announcements.","payload":{"length":722,"announcements":[{"_id":"6a232c515ae71db30c46b0a3","company":{"company_name":"obrieneng.com","country":"US","revenue":20000000},"categories":["Proof"],"description":["contract%20nda%20confidential%20%20%20gov%5Cdot%5Cmilitary%5Cva%5Csam.gov%20other"],"logo":"6a232c515ae71db30c46b089","proof":["6a232c515ae71db30c46b072","6a232c515ae71db30c46b073","6a232c515ae71db30c46b074","6a232c515ae71db30c46b075","6a232c515ae71db30c46b076","6a232c515ae71db30c46b077","6a232c515ae71db30c46b078","6a232c515ae71db30c46b079","6a232c515ae71db30c46b07a","6a232c515ae71db30c46b07b","6a232c515ae71db30c46b07c","6a232c515ae71db30c46b07d","6a232c515ae71db30c46b07e","6a232c515ae71db30c46b07f","6a232c515ae71db30c46b080","6a232c515ae71db30c46b081","6a232c515ae71db30c46b082","6a232c515ae71db30c46b083","6a232c515ae71db30c46b084","6a232c515ae71db30c46b085","6a232c515ae71db30c46b086","6a232c515ae71db30c46b087","6a232c515ae71db30c46b088"],"visits":262,"leakAt":-58637220540000,"createdAt":1780690001957,"updatedAt":1780690001957,"__v":0},{"_id":"6a21bd57d152110a6a4b4f68","company":{"company_name":"Stuga%20Machinery","country":"GB","revenue"…

Data the group says was taken

  • contracts
  • NDAs
  • confidential documents
  • government/military records

Screenshot of the leak post

Leak screenshot for obrieneng.com

Sources

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 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 1,770 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post August 24, 2026. The operation is currently active.

Also tracked as: inc ransom, INC.

Timeline of this disclosure

  • June 6, 2026obrieneng.com listed by Incransomon the group's public leak site
Data size
20 GB
Records
20 files

Other recent disclosures by Incransom

Incransom has been linked to 1,770 public victims on Darkfield. A sample of the most recent:

See the full Incransom dossier →

Sector and geography

This disclosure adds to ransomware activity in the Engineering & Architecture Services sector. Geographically, obrieneng.com is reported in United States, a country with 3,164 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Incransom means obrieneng.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 Incransom'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.