GCA Professional
thegentlemenThis 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 GAPWindow 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.
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
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.