L S Grim
bd_9d3ac9f5c58ff34c · schema v1 · pii pii-v1
Full breach record for L S Grim →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
L.S. Grim Consulting Engineers is a Mid-Atlantic-based engineering services corporation specializing in mechanical, electrical, and plumbing engineering design and consulting. They offer a variety of services including electrical systems, fire protection, and project management, all designed to meet code requirements and support LEED certification. With over 30 years of experience, their team focuses on quality control and effective project management to ensure client satisfaction. Their intended clients include organizations needing comprehensive engineering solutions and facilities management.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Dec 18, 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.