Sierra Management Group
bd_f0c920d4a2887d2d · schema v1 · pii pii-v1
Full breach record for Sierra Management Group →2 incidents on fileThreat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Genesis 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
Provides comprehensive medical practice management
J jump to incidentP pin to compareR raw source
Incident timeline — mostly unverified
? — ?
Breach window unknown
Mar 7, 2026
Claim posted
—
Corroborated · see linked filings
This record's own dates cannot anchor compliance clocks; see the linked filings.
Claim → filing
—
Compliance clock
Not assessable
Linked disclosures
Why this link?Regulatory filings (1) · sorted by filing gap
- HHS OCRbd_7441c426ff9c8eb22026-06-07 · +92dVerified
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.
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.
genesis
According to ransomware.live, Genesis is an emerging ransomware group first observed in late 2025, targeting small to mid-sized US organizations across healthcare, retail, financial services, legal, and manufacturing using double-extortion tactics, focusing heavily on data exfiltration and public leaking.