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Brisson & Massie Mechanical

qilin

This record tracks a ransomware attack claimed by the qilin group against Brisson & Massie Mechanical. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Window Zero

EXPOSURE GAP

Window Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.

312days open
t1 · Published t2 · Pending
Dec 22, 2025Not disclosed yet
Country
Canada
Business Category
Services
Employees
51-100
Date
December 22, 2025
Indexed by Breach House
December 22, 2025
Leak Status
leaked
checked 2026-10-26
Leak download available Enterprise
Disclosed / Notified
Not disclosed yet
Victim ID
wjDdVNFOni6k

Attack Summary

brissonmassie.com operates within the Services sector and is based in Canada. The entity is cataloged in this threat-intelligence index as a ransomware victim linked to the qilin threat actor. This listing type indicates a cybersecurity event where the organization was affected by ransomware activity attributable to qilin. The description focuses on the verified association between the entity, its sector and geographic location, and the confirmed threat actor linkage without disclosing unverified incident details. brissonmassie.com was listed as a ransomware victim associated with qilin.

Leak Screenshots

1 CAPTURED

Captured directly from the operator's leak site by our collector, last checked 2026-10-26. Verdict evidence: [M1] Published

Leak site capture 2026-10-26
2026-10-26
Showing the latest capture only
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Dark Web Exposure

Findings for brissonmassie.com — indexed by HaveIBeenRansom.
0
found in Infostealer logs
5
found in Traditional breaches
1
found in Ransomware leaks
Bell2017_BF.7z
TheUnderground - Reborn · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum 🪾 · breach
••• emails
Lifebreath
play · ransomware
••• emails
Zynga_BF_.7z.001
Database World ROC · breach
••• emails
Leak volumes are locked
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Visit Website Original Post View Group: qilin

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Legal Disclaimer: This ransomware victim record reflects information published on the operator's leak site. Breach.house only records what the operators themselves publish in the open. We take screenshots of their public pages and keep the proof material they post there, so that a listing can be verified and its status tracked over time. We do not purchase data, we do not solicit or encourage its publication, we do not access any private system, and we do not alter anything we record. Nothing is offered for download here, and detailed content is not published on this page or anywhere else on the public site: access to it is restricted to vetted customers under contract, for incident response, due diligence and cyber-resilience work. Breach.house is not affiliated with, and does not act on behalf of, the operators who publish this material. If you represent an organisation or individual named here and want a record reviewed or removed, contact us and we will act on it.