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Ransomware group thegentlemen hits Museum Siam
Museum Siam — a hospitality target operating in TH has been listed by the thegentlemen ransomware group on 2026-10-14. 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 | Museum Siam |
|---|---|
| Threat Group | thegentlemen |
| Summary | Museum Siam, a hospitality organization in Thailand, was listed by the thegentlemen ransomware group on its leak site on 2026-10-16. |
| Date of Breach | 2026-10-14 |
| Discovery Date | 2026-10-16 |
| Region | TH |
| Target Domain | museumsiam.org |
| Business Sector | Hospitality |
| Severity | MEDIUM |
Claim by thegentlemen
museumsiam.org Museum Siam museum in Bangkok run by NDMI under the public organization OKMD — the .org domain is real, but it's a government institute, not a private company. It occupies the former Ministry of Commerce building (1921–1922) and opened as a museum on 2 April 2008. The core exhibit Decoding Thainess (14 rooms on how Thai identity was formed) has run since 2017; there's also a free Underground Museum at MRT Sanam Chai (2020). Attendance is ~250–343K per year (different counting methods), 3.8M over 17 years; museum-level revenue isn't disclosed — finances publish only at OKMD level. Tickets: 100 THB adult, 50 students, free for kids under 15, 60+, monks, disabled visitors; open Tue–Sun 10:00–18:00. Beyond exhibits: a 4,000+ resource library, digital archives, venue rental (5–80K THB), and a nationwide museum-network support program.
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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