HackingHealthcareHealthcareStolen CredentialsData ExfiltratedTargetedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

Mount Desert Island Hospital

bd_d67d09f2ab8c5b20 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 4, 2023

Filed

Jul 14, 2023

To disclose

10 weeks

Affected

10state residents only

Linked

11 filings

Confidence

65%

Full breach record for Mount Desert Island Hospital →

Mount Desert Island Hospital, Inc. notified patients and employees of unauthorized network access between April 28 and May 7, 2023, discovered May 4, 2023. Compromised data included PHI, SSNs, DOBs, driver's licenses, and financial info. The hospital engaged third-party specialists, notified law enforcement, and offered credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 6 days

discovery → filing · 10 weeks / 71 days

Apr 28, 2023

Begins

May 4, 2023

Discovered

Jul 14, 2023

Filed

vs. sector median

2 wks faster

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

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Sitesnatchbd_06a87387a5341b482023-06-05 · +39dVerified by operator
Leak Sitedispossessorbd_b8dca3cb5dc60ff42023-06-03 · +41dVerified by operator

Regulatory filings (8) · sorted by filing gap

New Hampshire State AGbd_044b7cb6e8c5de742023-07-14Verified
Massachusetts State AGbd_078a57c00ca2db1d2023-07-14Verified
Maine State AGbd_437493e24886ba992023-07-17 · +3dVerified
Vermont State AGbd_529604a4efb3f8f52023-06-30 · +14dVerified

Show 4 more filings ↓up to 67d gap

HHS OCRbd_5f803381a2b19c3e2023-06-30 · +14dVerified by operator
Indiana State AGbd_26f8fb34f618424e2023-06-05 · +39dCandidate
New Hampshire State AGbd_113f749ab88f2f6b2023-09-19 · +67dVerified
Maine State AGbd_22158dc4a26fa3ca2023-09-19 · +67dVerified

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: May 4, 2023
Breach occurred: Apr 28, 2023 – May 7, 2023
Undetected for: 6 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 30, 2023
Affected individuals: 10state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: notified law enforcement
Initial access: valid_credentials

During the incident: Worked with third-party specialists to investigate
Re-secure our network
Implement additional security precautions
Notified law enforcement
Reviewing our policies and procedures related to data protection
Offering you access to [Variable Text #1: Credit Monitoring Length (12/24)] months of complimentary credit monitoring and identity protection services
Changes made: Re-secure our network
Implement additional security precautions
Reviewing our policies and procedures related to data protection
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(71 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

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 · this page

Maine State AG+42d

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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-427.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 14, 2023
Raw hash: b9dce479c5f661f0bcb1a312dbd0d8c487b7b3a8dd4b6e948beb8e10993a61fe

Linked disclosures

Ransomware claims (2)

Regulatory filings (8) · sorted by filing gap

Reporting entityMount Desert Island Hospital

Victim entityMount Desert Island Hospital

Incidentdiscovered May 4, 2023

Stated responseWorked with third-party specialists to investigate

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov