HackingHealthcareHealthcareStolen CredentialsTargetedIdentity (basic)Government IDMediumContained

Tri-City Healthcare District

bd_334b0f94cc2937a3 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 9, 2023

Filed

Apr 4, 2024

To disclose

21 weeks

Affected

Not disclosed

Linked

7 filings

Confidence

66%

Full breach record for Tri-City Healthcare District →4 incidents on file

Tri-City Healthcare District notified consumers of a data breach where an unknown actor accessed network files containing names and Social Security Numbers around November 8, 2023. The incident was discovered on November 9, 2023. The organization engaged cybersecurity experts, notified the FBI and DHS, and implemented additional security features. Complimentary credit monitoring and identity protection services were offered to affected individuals.

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Vermont clock✗ VT AG >45 bday21 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 1 days

discovery → filing · 21 weeks / 147 days

Nov 8, 2023

Begins

Nov 9, 2023

Discovered

Apr 4, 2024

Filed

vs. sector median

+10 wks slower

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Maine State AGbd_14769f608cc691522024-04-04Verified
Massachusetts State AGbd_5fe587e653ca1bfc2024-04-04Verified
New Hampshire State AGbd_7d1174f7723f487c2024-04-04Verified
Montana State AGbd_7d4d250c4c2f3d532024-04-04Candidate

Show 2 more filings ↓

Indiana State AGbd_a04472851663bc222024-04-04Verified
California State AGbd_d4c8c74c6bcb6edf2024-04-04Verified

Name: Tri-City Healthcare District
norm: tri city healthcare district

Name: Tri-City Healthcare District
norm: tri city healthcare district
Industry: Healthcarellm

Discovered: Nov 9, 2023
Breach occurred: Nov 8, 2023
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Apr 4, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified the Federal Bureau of InvestigationNotified U.S. Department of Homeland Security
Initial access: valid_credentials

During the incident: Engaged leading cybersecurity experts to assist with an investigation
Notified the Federal Bureau of Investigation
Notified U.S. Department of Homeland Security
Changes made: Implemented additional security features to reduce the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(147 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Maine State AGApr 4 · first

Massachusetts State AGApr 4 · first

New Hampshire State AGApr 4 · first

Montana State AGApr 4 · first

Indiana State AGApr 4 · first

California State AGApr 4 · first

Vermont State AGApr 4 · 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://ago.vermont.gov/document/2024-04-04-tri-city-healthcare-district-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 4, 2024
Raw hash: 4c9507168b52a6422ac77ec7cbe611ab90a5da86577bc31215cf513852fea2b0

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityTri-City Healthcare District

Victim entityTri-City Healthcare District

Incidentdiscovered Nov 9, 2023

Stated responseEngaged leading cybersecurity experts to assist with an investigation

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov