Ransomware victim disclosure
← All victimsSternthal Montigny Greenberg St-Germain LLP
listed as Sternthal Montigny Greenberg St-Germain · Claimed by brotherhood · listed 7 months ago
Status timeline
- Listed
Oct 10, 2025
- Data leaked
At a glance
- Group
- brotherhood
- Status
- Data leaked
- Country
- Canada
- Sector
- Not Found
- Listed on leak site
- Oct 10, 2025
- Data size
- 22 GB
About the victim
AI dossier — public-source company profileSternthal Montigny Greenberg St-Germain LLP (SMGS) is a Montreal-based law firm with over 45 years of operation, offering personalized legal services in business and commercial law, personal legal matters, litigation and dispute resolution, and banking, financing and insolvency. The firm is led by a team of named partners and associates reachable at their Place du Canada office. They serve both business and individual clients primarily in the province of Québec.
- Industry
- Legal Services
- Address
- Place du Canada, 1010 de la Gauchetière West, Suite 200, Montréal, Québec, H3B 2N2, Canada
- Employees
- 1-10
Attack summary
Severity: critical — SMGS is a law firm whose files are inherently likely to contain privileged legal communications, client PII, financial records, and potentially sensitive litigation materials. A 22 GB exfiltration from a legal practice with disclosed/published status constitutes a critical exposure of regulated and highly sensitive data at scale.The Brotherhood ransomware group claims to have exfiltrated 22 GB of compressed files from SMGS and has published the data. No ransom amount was stated and no details on encryption were provided.
Data the group says was taken
AI dossier — extracted from the leak post- Compressed files (22 GB)
What the group claims
Contains: 22 Gb compressed Files
Sources
Source
Indexed 7 months agoThis 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.
