Gfeller Treuhand und Verwaltungs — Ransomware Incident Claimed by The Gentlemen
- Victim: Gfeller Treuhand und Verwaltungs
- Claimed by The Gentlemen
- Date claimed: 2026-08-14
- Country: CH
- Sector: Professional Services
- Severity: High
Gfeller Treuhand und Verwaltungs AG is a Swiss real estate and fiduciary company based in Dübendorf, operating since 1980. They specialize in comprehensive property management, real estate sales, and leasing services. The firm provides professional administrative support, utilizing modern IT solutions to efficiently handle property maintenance and tenant relations.