MisuseHealthcareFinancial ServicesHealthcarePrivilege AbuseCustomer Data InvolvedEmployee Data InvolvedPIIPHIHealth (basic)Identity (basic)LowContained

Mass General Brigham Health Plan

bd_085acbe4c33da181 · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 2, 2024

Filed

Jun 28, 2024

To disclose

12 weeks

Affected

62state residents only

Linked

4 filings

Confidence

66%

Full breach record for Mass General Brigham Health Plan →3 incidents on file

Mass General Brigham Health Plan, Inc. notified the NH AG of a data security incident discovered April 2, 2024. An employee allowed an unauthorized person to perform job duties and view member personal information between July 31, 2023, and April 2, 2024. The incident involved PHI and PII of 62 NH residents. The employee was terminated, safeguards enhanced, and credit monitoring offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 246 days

discovery → filing · 12 weeks / 87 days

Jul 31, 2023

Begins

Apr 2, 2024

Discovered

Jun 28, 2024

Filed

vs. sector median

on median

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

HHS OCRbd_711042fc3add84da2024-06-28Verified
Massachusetts State AGbd_afe15fd4587cff342024-06-28Verified
Vermont State AGbd_d33554cfd6b5ad332024-06-28Verified

Name: Alston & Bird LLP
norm: alston bird

Name: Mass General Brigham Health Plan
norm: mass general brigham health plan
Domain: massgeneralbrighamhealthplan.org
Industry: HealthcarellmFinancial Servicesllm

Discovered: Apr 2, 2024
Breach occurred: Jul 31, 2023 – Apr 2, 2024
Undetected for: 246 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 28, 2024
Affected individuals: 62state-resident count only
Data types: PIIPHIHealth (basic)Identity (basic)
Attack vector: Insider
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: Internal
Regulator citations: Notified New Hampshire Attorney General Consumer Protection Bureau
Initial access: insider_action

During the incident: Terminated the employee involved in the incident
Improved the safeguards it has in place to protect its members’ information
Enhancing its employee training and processes for its security alert system
Offering free credit monitoring and other services through IDX
Changes made: Improved the safeguards it has in place to protect its members’ information
Enhancing its employee training and processes for its security alert system
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(87 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 3 states

View merged incident ↗

HHS OCRJun 28 · first

Massachusetts State AGJun 28 · first

Vermont State AGJun 28 · first

New Hampshire State AGJun 28 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

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: af3d844484de06734f04d4fdd7978ae5cfd69674cf71368e799be44d49ca37fc

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityAlston & Bird LLP

Victim entityMass General Brigham Health Plan

Incidentdiscovered Apr 2, 2024

Stated responseTerminated the employee involved in the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov