Stonehenge
About the organisation
Stonehenge Co Ltd is a company that operates in the Commercial & Residential Construction industry. It employs 250to499 people and has 10Mto25M of revenue. The company is headquartered in Phra Nakhon Si Ayutthaya, Phra Nakhon Si Ayutthaya, Thailand.
What the listing means
Stonehenge appeared on the lynx leak site on 14 April 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated β the attack itself is dated 06 April 2026, 7 days before the listing. This group has not published new claims in the last 30 days.
Recommended actions
- Treat any unsolicited message referencing Stonehenge as suspicious β leaked data gets weaponised for phishing within days.
- If you hold an account on stonehenge.o.uk, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Construction 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 β check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/U3RvbmVoZW5nZUBseW54
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.