HackingHealthcareHealthcareVulnerability ExploitData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

Tri-City Healthcare District

bd_14769f608cc69152 · schema v1 · pii pii-v1

Severity

High

Discovered

Mar 7, 2024

Filed

Apr 4, 2024

To disclose

28 days

Affected · nationwide

7,8473 in this filing

Linked

7 filings

Confidence

67%

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

Tri-City Healthcare District, a healthcare entity based in Oceanside, CA, reported an external system breach (hacking) occurring on November 9, 2023, discovered on March 7, 2024. The incident compromised the names and Social Security Numbers of 7,847 individuals, including 3 Maine residents. The District notified affected individuals in writing on April 4, 2024, and offered 12 months of identity protection services, including credit monitoring and insurance reimbursement.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Mar 7, 2024 → Filed with AG Apr 4, 202428d ✓ ME AG ≤30d28 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 119 days

discovery → filing · 28 days

Nov 9, 2023

Begins

Mar 7, 2024

Discovered

Apr 4, 2024

Filed

vs. sector median

7 wks faster

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

Vermont State AGbd_334b0f94cc2937a32024-04-04Verified
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: Mar 7, 2024
Breach occurred: Nov 9, 2023
Undetected for: 119 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 4, 2024
Affected individuals: 7,847state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected individuals
Offered 12 months of credit and CyberScan monitoring
Provided $1,000,000 insurance reimbursement policy
Provided fully managed identity theft recovery services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: ME AG ≤30d · 28d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Mar 7, 2024
→ Filed with AG: Apr 4, 2024
28d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Mar 7, 2024 → Filed with AG: Apr 4, 2024	28d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Vermont 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

Maine 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/be245762-c5e7-48d5-92c7-2c292e910909.shtml
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: e680883d5ad03ba910ec611dcd86d07cf729b69e5094c08eed2e6f778556dced

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityTri-City Healthcare District

Victim entityTri-City Healthcare District

Incidentdiscovered Mar 7, 2024

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov