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VictimsO'Brien Engineering & Architecture

O'Brien Engineering & Architecture

listed as obrieneng.com

claimed by IncransomEngineering & Architecture ServicesUnited Statescritical · Confirmed exfiltration of classified/sensiti…
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What this is

A claim by the operator that it has published the data.

No statement from the organisation is on record here. We index the listing; we never host the data.

Corroboration
2 of 4

Our capture of the post text · Our screenshot of the post

Timeline
  1. Listed · Jun 6, 2026
  2. Data published · date unknown: the post does not say
Leak-post captureJun 6, 2026post text on filescreenshot on fileverified missingblurred by default
Leak-site post naming obrieneng.com
Leak-post screenshot, 1 of 1 · not yet verified against the victim name · blurred until you ask
Posthttp://incbacg6bfwtrl…onion/api/v1/blog/get/announcements?page=1&perPage=15
What the operator wrote
``` {"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","6a232c515ae71db30…

Quoted from the captured post, reformatted. Original language preserved.

Size claimed
20 GB
operator figure, unverified
Records claimed
20 files
operator figure, unverified
Ransom · deadline
not stated
we show unknown, never zero
Data the operator says was taken
Contract NDAsConfidential documentsGovernment/military project filesVA-related materialsSAM.gov related recordscontractsNDAsconfidential documentsgovernment/military records

Extracted from the post text by the enrichment model; each item traces to a sentence in the capture. The post references about 23 proof files.

Attack summary

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.

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.

If this is your organisation
  1. Treat every credential named in the post as compromised: reset, revoke sessions, enforce a second factor.
  2. Open the incident with CISA and your regulator before data is published, not after.
  3. Watch the listing: a tracked domain is re-checked against every new post and you are paged when this one changes status or another operator names the organisation.

Method: the row comes from the operator's post, listed by an independent tracker and checked against our own Tor capture of the leak site. We publish the listing, the screenshot and the claim text; we do not download, host or redistribute leaked data. A post that changes is re-captured and this page updates.

Updated 4 months ago

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 1,829 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post October 14, 2026. The operation is currently active.

Also tracked as: inc ransom, INC.

Timeline of this disclosure

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

Other recent disclosures by Incransom

Incransom has been linked to 1,829 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 3,234 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, recording every new disclosure and the moment the operator says the data was released. Each entry on this page is sourced from the operator's own publication, listed by an independent tracker (RansomLook) and checked against our own capture. 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.

obrieneng.com data breach — Incransom ransomware leak (2026) · Darkfield