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Heidelberggc

kairos

This record tracks a ransomware attack claimed by the kairos group against Heidelberggc. 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.

271days open
t1 · Published t2 · Pending
Sep 18, 2025Not disclosed yet
Country
Australia
Business Category
Finance / Legal / Insurance
Employees
51-100
Discovered
2025-12-08
Published
September 18, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
i4jTulJnZYEw

Attack Summary

At Heidelberg Golf Club. We offer not only a beautiful 18 hole golf course, but also an 8 rink lawn bowls green and multiple function rooms to suit any occasion. Follow the links below to find out more. Heidelberg Golf Club is located only 30 minutes from Melbourne’s CBD. The perfect location for any occasion and one of the best golfing experiences Melbourne golf has to offer!

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

Cross-referenced against HaveIBeenRansom's dark-web index of ransomware leaks, breaches & infostealer logs.
0
found in Infostealer logs
0
found in Traditional breaches
0
found in Ransomware leaks
Emails exposed
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External
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Distinct leaks
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••• emails
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••• emails
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••• emails
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••• emails
Full exposure is locked
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View Group: kairos

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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.