This record tracks a ransomware attack claimed by the
lockbit3 group against
csem.qc.ca. 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.
-35days
t1 · Published
t2 · Disclosed
Business Category
Telecommunications
Published
August 09, 2023
Disclosed / Notified
Jul 06, 2023
Attack Summary
1 partCSEM promotes and encourages the burial of cabled networks on the Montreal territory by associating with the City of Montreal and with numerous energy and telecommunications companies and providers.
Leak Screenshots
SAMPLE
Proof-of-breach screenshots the operator posted from the stolen data. Previews are
redacted and locked — the originals are available on HaveIBeenRansom.
Dark Web Exposure
Findings for csem.qc.ca
— indexed by HaveIBeenRansom.
9
found in Infostealer logs
41+
found in Traditional breaches
18+
found in Ransomware leaks
INTEGROY.COM
clop · ransomware
••• emails
Exploit.in.rar
LKnet reserve chat · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Televerde
play · ransomware
••• emails
Collection1_BF.7z.003
formaceft_db · breach
••• emails
+ 9 more leak sources locked
Leak volumes are locked
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.