Clustered 4 filings across 4 jurisdictions · filed Mar 25, 2024. View entity profile → Other incidents for this victim →
incident inc_357d9851baea484c · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
Identity (basic) · Government ID · Health (basic)
IN ME MT ND
HHS OCR · State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Apr 13, 2023
When the intrusion reportedly occurred, per the linked filings
Mar 4, 2024
Reported by MAINE AG filing
Pembina County Memorial Hospital reported a data breach to the Montana Attorney General. The breach was reported on 2024-03-25. The breach occurred on 4/13/2023. 48 Montana residents were affected.
Affected (this filing): 48
Pembina County Memorial Hospital (ND) reported to HHS on 2024-03-25 a ransomware incident affecting 23,811 individuals. Breached information was located on a Network Server. PHI involved included names, addresses, dates of birth, driver's license and Social Security numbers, claims and financial information, diagnoses, lab results, prescription information, and other treatment information. The CE notified HHS, affected individuals, and the media, and implemented additional administrative and technical safeguards.
Affected (this filing): 23,811
Pembina County Memorial Hospital reported a data breach affecting 23,451 individuals, including two residents of Maine. The incident, described as an external system breach, occurred between March 7, 2023, and April 13, 2023, but was not discovered until March 4, 2024. The compromised information includes names and Social Security numbers. The hospital began notifying affected individuals on March 25, 2024, and is offering 12 months of credit monitoring and identity theft protection services through TransUnion.
Affected (this filing): 23,451
Pembina County Memorial Hospital reported a data breach to the Indiana Attorney General. The breach occurred on 2023-03-07 and was reported on 2024-03-25. 18 Indiana residents were affected. 23,451 individuals affected in total.
Affected (this filing): 23,451
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.