Threat Intelligence

Thegentlemen Claims Australian Manufacturing Firm Mann Group on Its Leak Site

ransomware.live · 31 Oct 2026

Key Takeaway Manufacturing and engineering businesses should confirm that their backups are tested and stored offline, and that staff know how to report suspicious emails or supplier requests, before a leak site listing ever puts them in the spotlight.

This claim is unverified, and Mann Group has not confirmed an incident. The thegentlemen ransomware group listed the company on its leak site on 26 October 2026, and the public tracker ransomware.live recorded the listing on 31 October 2026. Groups of this kind sometimes list companies they never breached, or list them during negotiations, so the listing alone does not show that any systems were compromised.

Mann Group (manngroup.com.au) is an Australian engineering and construction company founded in 1992 in Sydney. According to the description attached to the listing, it operates through eight subsidiaries, including Mechtronic Engineering, Mann Fab, Mann Energy, Mann Enviro and Mann Solar, and has more than 350 employees. The tracker categorises it under manufacturing.

No further detail is available from the listing, and no size of any claimed data has been given. Until the company or the authorities say more, the situation should be treated as an allegation only. Businesses that work with Mann Group or its subsidiaries may wish to watch for official updates and stay alert to unusual contact.

ransomware dark web leak site thegentlemen Manufacturing Australia

Summarised by CISO AI from ransomware.live, written with Claude Sonnet 5.5. We link back to every original so you can read it yourself.