MalwareRansomwareData ExfiltratedRansom DemandedCustomer Data InvolvedPHIIDENTITY_BASICIDENTITY_GOVERNMENTCriticalContained
Mass General Brigham Health Plan
bd_085acbe4c33da181 · schema v1 · pii pii-v1
Full breach record for Mass General Brigham Health Plan →Mass General Brigham Health Plan, Inc. reported a ransomware attack on June 27, 2024, affecting approximately 1 million individuals. The incident involved data encryption and exfiltration. PHI, names, and government IDs were compromised. The company engaged forensic investigators and notified law enforcement.
This filing is one of 3 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (2) · sorted by filing gap
- bd_711042fc3add84daHHS OCRfiled 2024-06-28Verified
- bd_d33554cfd6b5ad33Vermont State AGfiled 2024-06-28Candidate
Source provenance
- Source URL
- https://mm.nh.gov/files/uploads/doj/remote-docs/mass-general-brigham-health-plan-20240628.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Jun 28, 2024
- Raw hash
- 651024088c41e0689053a09816a109430ae386416621af12ebdb499808d526ef
Reporting entity
- Name
- Mass General Brigham Health Plannorm: mass general brigham health plan
Victim entity
- Name
- Mass General Brigham Health Plannorm: mass general brigham health plan
Incident
- Discovered
- Jun 27, 2024
- Materiality determined
- —
- Notification sent
- Jun 28, 2024
- Affected individuals
- 1,000,000
- Data types
- PHIIDENTITY_BASICIDENTITY_GOVERNMENT
- Attack vector
- Ransomware
- MITRE ATT&CK
- T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
- Threat actor
- ExternalFinancial
Compliance
- Time to disclose
- ≤1 day(1 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.