Clustered 4 filings across 3 jurisdictions · filing window Jun 5, 2023 → Sep 19, 2023. View entity profile → Other incidents for this victim →
incident inc_d32cc2634b274abb · merge_method human · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Materiality delta · SEC filing delay — no SEC 8-K in this cluster.
Identity (basic) · Financial account · Financial credentials
ME NH
Leak Site · HHS OCR · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Apr 28, 2023 → May 7, 2023
When the intrusion reportedly occurred, per the linked filings
May 4, 2023
Reported by NEW HAMPSHIRE AG filing
Mount Desert Island Hospital serves a close-knit island and surrounding communities through a 25-bed critical access facility in Bar Harbor and a network of area health centers—all designed to provide comprehensive healthcare for residents and visitors.
Jun 21, 2023
Reported by MAINE AG filing
Mount Desert Island Hospital, Inc. reported to HHS on 2023-06-30 a Hacking/IT Incident affecting 29,952 individuals. Breached information located on Network Server. The incident involved a ransomware attack encrypting PHI including names, addresses, SSNs, DOBs, claims, diagnoses, and medications. Response included credit monitoring and security safeguards.
Affected (this filing): 29,952
Mount Desert Island Hospital, Inc. notified the New Hampshire Attorney General of a network security incident occurring between April 28 and May 7, 2023. The hospital became aware of the unauthorized access on May 4, 2023. The breach potentially impacted current and former employees, dependents, and beneficiaries, as well as patients, exposing names combined with sensitive identifiers. The investigation is ongoing, and the hospital has engaged third-party specialists, notified law enforcement, and is offering credit monitoring services to affected individuals.
Mount Desert Island Hospital, Inc. experienced an external system breach (hacking) on April 28, 2023, which was discovered on June 21, 2023. The breach affected 26,046 Maine residents, compromising their names and financial account information. The hospital notified the affected individuals and offered 24 months of credit monitoring and identity protection services through IDX.
Affected (this filing): 26,046
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.