Gesvalt
About the organisation
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
What the listing means
Gesvalt appeared on the thegentlemen leak site on 08 April 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 134 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Gesvalt as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on gesvalt.es, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Business Services organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/R2VzdmFsdEB0aGVnZW50bGVtZW4=