THE MILLENNIUM GROUP
d4rk4rmy listed this organization on its leak site on Aug 16, 2025.
- Listing date
- Aug 16, 2025
- Attack date
- Aug 16, 2025
Listing text
https://www.tmgofficeservices.com The Millennium Group (TMG) is a global provider of document management and workplace services with more than 40 years of operations. TMG is certified as a Minority Business Enterprise (MBE) and a Woman-Owned Business Enterprise (WBE). The company operates…
About the group
d4rk4rmy posted its first listing on Jul 7, 2025 and has listed 18 organizations to date.
D4rk4rmy is a ransomware and data extortion group active since at least 2025, targeting financial services, hospitality, technology, and logistics sectors, operating a RaaS model with notable claimed victims including the Monte Carlo casino resort.
Learning center
What does this listing mean?
Ransomware groups move data out of the organization before encrypting systems and threaten to publish it if the ransom is not paid. This method is called double extortion.
The listing shows that the group claims to have targeted the organization. Whether the data was published is shown by the later status of the listing.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
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