All ransomware incidents
Ransomware group thegentlemen hits Thialf
Thialf — a energy & utilities target operating in NL has been listed by the thegentlemen ransomware group on 2026-07-23. The information below reflects what the threat actor has publicly claimed on their leak site; the details have not been independently verified.
Incident Report
| Target Organization | Thialf |
|---|---|
| Threat Group | thegentlemen |
| Summary | ***.nl zoominfo.com/c/thialf/430686423 Thialf is a world-renowned ice arena located in Heerenveen, Netherlands, often referred to as the "Cathedral of Speed Skating." It serves as the home base for the Dutch national speed skating team and hosts a wide range of ice sports, including long track and short track speed skating, figure skating, and ice hockey. Recently, it was officially confirmed as the long-track speed skating venue for the 2030 Winter Olympics. The facility is celebrated for its modern, sustainable design and its role as a major hub for both elite professional competitions and public recreational skating. |
| Date of Breach | 2026-07-23 |
| Discovery Date | 2026-07-23 |
| Region | NL |
| Target Domain | thialf.nl |
| Business Sector | Energy & Utilities |
| Severity | MEDIUM |
Claim by thegentlemen
***.nl zoominfo.com/c/thialf/430686423 Thialf is a world-renowned ice arena located in Heerenveen, Netherlands, often referred to as the "Cathedral of Speed Skating." It serves as the home base for the Dutch national speed skating team and hosts a wide range of ice sports, including long track and short track speed skating, figure skating, and ice hockey. Recently, it was officially confirmed as the long-track speed skating venue for the 2030 Winter Olympics. The facility is celebrated for its modern, sustainable design and its role as a major hub for both elite professional competitions and public recreational skating.
Posted by the thegentlemen threat actor on its public leak site. This is the group's own statement and has not been independently verified by HackerFeeds.
Sources
Disclaimer
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