Disclosure context

About BrainCipher

Braincipher is a recently emerged ransomware group that was first observed in July 2024, operating with apparent financial motivations and targeting organizations primarily across North America and Europe. The group's origin and potential affiliations remain largely undocumented by major threat intelligence organizations, though their targeting patterns suggest a broad opportunistic approach rather than nation-state backing, likely operating as an independent entity rather than through established ransomware-as-a-service infrastructure. Their attack methodology and specific technical capabilities have not been extensively documented by CISA, FBI, or major security research firms, though their victim distribution across 44 confirmed targets spanning business services, manufacturing, technology, and healthcare sectors indicates a generalist approach to target selection rather than sector-specific expertise. No major high-profile campaigns or significant law enforcement actions have been publicly documented against this group by reputable sources, suggesting either a relatively low-impact operational scale or insufficient intelligence collection on their activities. As of current reporting, the group's operational status remains unclear due to limited public documentation from established threat intelligence sources. The group has been linked to 56 public disclosures across our corpus. First observed on a leak site on July 1, 2024; most recent post May 13, 2026. The operation is currently active.

Also tracked as: brain cipher.

Timeline of this disclosure

May 1, 2026westonconsulting.com listed by BrainCipheron the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,640 disclosures indexed across all operators we track. Geographically, westonconsulting.com is reported in US, a country with 2,713 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.

Ransomware victim disclosure

← All victims

westonconsulting.com

Claimed by BrainCipher · listed 20 days ago

19d

Age

since listed · data leaked

Status timeline

Listed
May 1, 2026
Data leaked

At a glance

Group: BrainCipher
Status: Data leaked
Country: US
Sector: Business Services
Listed on leak site: May 1, 2026

About the victim

AI dossier — public-source company profile

Weston Consulting is one of Canada's largest and most experienced planning and urban design firms, founded in 1981. The firm provides services spanning master planning, urban design, land development strategy, and government policy navigation for municipal, regional, and rural clients. It operates across projects of varying scales serving both public and private sector interests.

Industry: Planning & Urban Design Consulting
Founded: 1981

Attack summary

Severity: high — Over 1 TB of data has been confirmed exfiltrated and published across multiple onion download links, representing significant exposure of business and potentially client-sensitive data. While the sector is not directly regulated (e.g. healthcare/finance), the scale of exfiltration and full publication elevates this to high severity.

BrainCipher claims to have exfiltrated more than 1 TB of data from Weston Consulting and has published download links to the stolen data across ten onion addresses, indicating full data publication with no ransom amount stated.

high

Data the group says was taken

AI dossier — extracted from the leak post

Exfiltrated company data (>1 TB)
Project files (likely planning/urban design documents)
Client records
Internal business documents

The group's post references roughly 10 proof files.

Original description

AI-summarised, not from the leak post

N/A

The leak post

captured from the group's site

We have more 1TB of data. If you think you are here by mistake, please contact us at [email protected] 
⏳ 12d 8h 29m 41s remaining 
Download: 3fg2gfwrdks46drwvejpgpak5klrflclsjjo35dxtqfk3poeez6oezad.onion If you think you are here by mistake, please contact us at [email protected] 
Download: emdnfl2fv32jhssxcbxlo6dzg2at4d7qbw2md6inz63qzdfgyln5cwyd.onion If you think you are here by mistake, please contact us at [email protected] 
Download: a4vbe7yp4kluped6khuhpr5nmzshiimx2jt5j22ozriiq6ngsm3fcpyd.onion If you think you are here by mistake, please contact us at [email protected] 
Download: x3nb7qcygpem2j5xzstyzdtgzofzkwkx4eko3ug4r73i6uhcgvyffjyd.onion If you think you are here by mistake, please contact us at [email protected] 
Download: 3frnhzcnlkjnw5q3tm6elzizinm2k3bmrtf2xwqjzpcxzeqwn2tv6wyd.onion If you think you are here by mistake, please contact us at [email protected] 
Download: 6ft2dfh26wm3w44orpjcgviutvfp25ez2iyh5ego5egvfmifrws7vvqd.onion If you think you are here by mistake, please contact us at [email protected] 
Download: zijgmuqjzb6dc7pofxhtaiz36qqyg35lhutybmzaz6whzgei2casjgid.onion If you think…

Sources

Victim sitewestonconsulting.com
Leak posthttp://vkvsgl7lhipjirmz6j5ubp3w3bwvxgcdbpi3fsbqngfynetqtw4w5hyd.onion/n/westonconsulting

Source

Indexed 20 days 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.