HackingHealthcareHealthcareCustomer Data InvolvedData ExfiltratedDelayed DiscoveryIdentity (basic)Financial accountFinancial credentialsMedium

Mount Desert Island Hospital

bd_437493e24886ba99 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 21, 2023

Filed

Jul 17, 2023

To disclose

26 days

Affected · nationwide

25,93723,013 in this filing

Linked

11 filings

Confidence

65%

Full breach record for Mount Desert Island Hospital →

Mount Desert Island Hospital, Inc. experienced an external system breach that was discovered on June 21, 2023. The breach, which occurred on April 28, 2023, impacted 25,937 individuals. The compromised information included names in combination with financial account numbers or credit/debit card numbers and their associated security codes or PINs. The hospital began notifying affected individuals on June 30, 2023, and offered 12 months of credit monitoring and identity protection services.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d26 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 · 54 days

discovery → filing · 26 days

Apr 28, 2023

Begins

Jun 21, 2023

Discovered

Jul 17, 2023

Filed

vs. sector median

9 wks faster

This filing is one of 11 about the same incident.View merged incident

A leak claim by dispossessor about this victim predates this filing by 44 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Sitesnatchbd_06a87387a5341b482023-06-05 · +42dVerified by operator
Leak Sitedispossessorbd_b8dca3cb5dc60ff42023-06-03 · +44dVerified by operator

Regulatory filings (8) · sorted by filing gap

New Hampshire State AGbd_044b7cb6e8c5de742023-07-14 · +3dVerified
Massachusetts State AGbd_078a57c00ca2db1d2023-07-14 · +3dVerified
Montana State AGbd_d67d09f2ab8c5b202023-07-14 · +3dVerified
Vermont State AGbd_529604a4efb3f8f52023-06-30 · +17dVerified

Show 4 more filings ↓up to 64d gap

HHS OCRbd_5f803381a2b19c3e2023-06-30 · +17dVerified by operator
Indiana State AGbd_26f8fb34f618424e2023-06-05 · +42dCandidate
New Hampshire State AGbd_113f749ab88f2f6b2023-09-19 · +64dVerified
Maine State AGbd_22158dc4a26fa3ca2023-09-19 · +64dVerified

Name: Mount Desert Island Hospital
norm: mount desert island hospital
Domain: mdihospital.org

Name: Mount Desert Island Hospital
norm: mount desert island hospital
Domain: mdihospital.org
Industry: Healthcarellm

Discovered: Jun 21, 2023
Breach occurred: Apr 28, 2023
Undetected for: 54 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 30, 2023
Affected individuals: 25,937state + nationwide
Data types: Identity (basic)Financial accountFinancial credentials
Data elements: Financial account number
Attack vector: Unauthorized Access
Threat actor: ExternalFinancial

During the incident: Notified consumer reporting agencies
Provided written notification to affected individuals
Changes made: Offered 12 months of credit monitoring and identity protection services through IDX
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 26 days(26 days from discovery to filing)
Compliance flags: Leak >30dME AG ≤30d · 26dME CRA notice due
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: Jun 21, 2023
→ Filed with AG: Jul 17, 2023
26d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jun 21, 2023 → Filed with AG: Jul 17, 2023	26d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 6 states

View merged incident ↗

Indiana State AGJun 5 · first

Vermont State AG+25d

HHS OCR+25d

New Hampshire State AG+39d

Massachusetts State AG+39d

Montana State AG+39d

Maine State AG+42d · this page

New Hampshire State AG+106d

Maine State AG+106d

Pattern: first filing Jun 5 (IN), last Sep 19 (ME) — a 106-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/de93584a-6040-4e49-8ec8-b276479c95a2.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 17, 2023
Raw hash: 91df15ca7ad77ad413d6c75ab50a6af25a11b79779d17cb618e7356e0b29afeb

Linked disclosures

Ransomware claims (2)

Regulatory filings (8) · sorted by filing gap

Reporting entityMount Desert Island Hospital

Victim entityMount Desert Island Hospital

Incidentdiscovered Jun 21, 2023

Stated responseNotified consumer reporting agencies

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov