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GCA Professional

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against GCA Professional. 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.

149days open
t1 · Published t2 · Pending
Apr 04, 2026Not disclosed yet
Country
Hong Kong
Business Category
Transportation / Travel / Logistics
Employees
+1000
Discovered
2026-04-04
Published
April 04, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
O3NzGUiRvhjD

Attack Summary

gca-group.com zoominfo.com/c/gca-professional-services-group-ltd/346680381 GCA Professional Services Group is a leading financial services provider headquartered in Hong Kong, with over 25 years of experience serving blue-chip institutional, corporate, and individual clients globally. Its core services include valuation and advisory, corporate finance, mining and mineral consultancy, and corporate services.

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 gca-group.com — indexed by HaveIBeenRansom.
0
found in Infostealer logs
39
found in Traditional breaches
0
found in Ransomware leaks
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