National Museum
About the organisation
***.dk zoominfo.com/c/national-museum/372526094 The National Museum of Denmark, located in the heart of Copenhagen, is the country's premier institution for cultural history, spanning from the Stone Age to the present day. It houses world-renowned archaeological treasures—including Viking hoards, the ancient Sun Chariot, and the Egtved Girl—alongside extensive global ethnographic collections. The museum is dedicated to exploring and sharing Denmark's rich heritage and global human history through engaging, research-driven exhibitions
What the listing means
National Museum appeared on the thegentlemen leak site on 15 June 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 National Museum as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on natmus.dk, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Public Sector 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/TmF0aW9uYWwgTXVzZXVtQHRoZWdlbnRsZW1lbg==