This record tracks a ransomware attack claimed by the
killsec group against
Harcourts Prime Properties. 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.
-60days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Disclosed / Notified
Jan 18, 2025
Attack Summary
Harcourts Prime Properties was named by the killsec ransomware group as a targeted organization. It operates in the Communication / Marketing sector. The affected entity is based in United States. The incident was first observed on March 18, 2025. Breach House tracks this attack from public ransomware leak-site postings for threat-intelligence purposes.
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 harcourtsprime.com
— indexed by HaveIBeenRansom.
3
found in Infostealer logs
811+
found in Traditional breaches
4+
found in Ransomware leaks
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••• emails
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Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
contacts_12.csv
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.