Cardiovascular Medical Group of Southern California (CVMG)
bd_e02b1dba34cc4e35 · schema v1 · pii pii-v1
Full breach record for Cardiovascular Medical Group of Southern California (CVMG) →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
Cardiovascular Medical Group of Southern California provides a comprehensive range of cardiovascular services, including diagnostic testing, disease management, and advanced treatments for patients of all ages. Their board-certified physicians specialize in cardiology and internal medicine, ensuring expert care and a focus on preventing heart disease. The clinic leverages the latest medical technologies to support patient health and offers accessible virtual services such as electronic appointment requests and test results. Their commitment to personalized care is evident in their strong physician-patient relationships and partnerships with renowned medical institutions.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Jan 11, 2026
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.