HackingStolen CredentialsCustomer Data InvolvedData ExfiltratedPIIIDENTITY_BASICLowContained
Cornerstone Healthcare Group Management Services LLC
bd_3ea79518fc5ab9ad · schema v1 · pii pii-v1
Full breach record for Cornerstone Healthcare Group Management Services LLC →Cornerstone Healthcare Group Management Services LLC reported a supplemental data breach affecting 24 New Hampshire residents. The breach occurred on December 19, 2023, following suspicious network activity detected in mid-December 2023. Personal information was compromised. The company engaged cybersecurity firms and law enforcement, and offered credit monitoring services.
This filing is one of 4 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (3) · sorted by filing gap
- bd_5291e3d7b8c066a0New Hampshire State AGfiled 2024-11-06(2d gap)Verified
- bd_88a92967dc0456b4California State AGfiled 2024-11-02(2d gap)Candidate
- bd_28201747796ff006Vermont State AGfiled 2024-11-01(3d gap)Verified
Source provenance
- Source URL
- https://mm.nh.gov/files/uploads/doj/remote-docs/cornerstone-healthcare-group-management-20241104.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Nov 4, 2024
- Raw hash
- 00a434234f90685851a1b27c13fadf6fd81b4fa466dc1dff91ba3ecf01f87a2b
Reporting entity
- Name
- Cornerstone Healthcare Group Management Services LLCnorm: cornerstone healthcare group management
Victim entity
- Name
- Cornerstone Healthcare Group Management Services LLCnorm: cornerstone healthcare group management
Incident
- Discovered
- Dec 15, 2023
- Materiality determined
- May 30, 2024
- Notification sent
- Jul 1, 2024
- Affected individuals
- 24
- Data types
- PIIIDENTITY_BASIC
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1078 Valid Accounts
- Threat actor
- External
- Regulator citations
- Notified Office of the Attorney General
- Initial access
- valid_credentials
Compliance
- Time to disclose
- 46 weeks(325 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.