The DM Burr Group
bd_43caaab709bc9c67 · schema v1 · pii pii-v1
Full breach record for The DM Burr Group →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Sinobi on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
The DM Burr Group is a multifaceted company that has many divisions that are complementary to one another giving our customers the easiest way possible to bundle services together thus saving time and money at the same time. DM Burr was started in January of 1998 and has had extraordinary growth due to our ever present "the customer comes first" attitude. Cannot imagine a better group of managers and employees than the ones that work at DM Burr. DM Burr Mechanical- All phases of Heating, Cooling, Plumbing and Electrical installation, service and repair. Direct vendor of York and Lennox. DM Burr Disaster Restoration-Water.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Aug 4, 2025
Claim posted
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No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
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Compliance clock
Not assessable
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.
No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.
sinobi
According to ransomware.live, Sinobi is a private vetted-affiliate RaaS group that emerged in mid-2025, believed to be a rebrand of the Lynx/INC ransomware lineage, claiming 176 victims by end of 2025 through double-extortion attacks primarily against mid-market US organizations via compromised SonicWall VPN credentials.