This record tracks a ransomware attack claimed by the
thegentlemen group against
Gesvalt. 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.
150days open
t1 · Published
t2 · Pending
Business Category
Construction / Real Estate
Disclosed / Notified
Not disclosed yet
Attack Summary
gesvalt.es zoominfo.com/c/gesvalt/429923714 Gesvalt is a leading Spanish real estate valuation and appraisal company serving both private individuals and businesses. It offers official property appraisals for mortgage guarantees, asset distribution, and general valuation purposes, with prices starting from €75 for garages and storage units, and €165 for residential properties — reports are valid for all Spanish banks. Beyond standard appraisals, the company also provides sustainability consulting services, including BREEAM certification and decarbonization roadmaps for commercial real estate and hotel portfolios
Leak Screenshots
SAMPLE
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Dark Web Exposure
Findings for gesvalt.es
— indexed by HaveIBeenRansom.
39
found in Infostealer logs
503
found in Traditional breaches
3
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
contacts_80.csv
Database World ROC · breach
••• emails
contacts_82.csv
Database World ROC · breach
••• emails
Database World ROC · breach
••• emails
Database World ROC · breach
••• emails
TheUnderground - Reborn · breach
••• emails
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