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Keyser Mason Ball

play

This record tracks a ransomware attack claimed by the play group against Keyser Mason Ball. 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.

-50days
t1 · Published t2 · Disclosed
Dec 30, 2023Nov 11, 2023
Country
Canada
Business Category
Finance / Legal / Insurance
Employees
51-100
Discovered
2023-12-30
Published
December 30, 2023
Disclosed / Notified
Nov 11, 2023
Victim ID
AvIrwoX7mro6

Attack Summary

Canada

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.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for kmblaw.com — indexed by HaveIBeenRansom.
1
found in Infostealer logs
278+
found in Traditional breaches
328+
found in Ransomware leaks
Comwave
medusa · ransomware
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum 🪾 · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
Sheridan Nurseries
play · ransomware
••• emails
UnderArmour_BF_.7z.001
Database World ROC · breach
••• emails
shouldve_paid_the_ransom_CANADALIFE-SHINYHUNTERS.7z
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
+ 17 more leak sources 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.