Clustered 4 filings across 4 jurisdictions · filed Dec 12, 2023. View entity profile → Other incidents for this victim →
incident inc_b746dc6d5f6243ba · merge_method human · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
ME MT NH VT
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
all 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
Dec 19, 2022 → Dec 23, 2022
When the intrusion reportedly occurred, per the linked filings
Dec 23, 2022
Reported by VERMONT AG, NEW HAMPSHIRE AG filings
Aug 24, 2023
Reported by MAINE AG filing
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.
Harrisburg Medical Center notified consumers of a data breach where an unknown third party accessed systems from Dec 19-23, 2022. Affected data included names, SSNs, DOBs, clinical info, and for some, driver's license and financial account numbers. HMC engaged forensic investigators and law enforcement, enhanced security measures, and offered one year of Equifax credit monitoring.
Harrisburg Medical Center notified the New Hampshire Attorney General of a cybersecurity incident affecting 3 NH residents. Unauthorized access occurred between Dec 19-23, 2022. Personal information was accessed. No evidence of harm or misuse was found. Affected individuals received notification letters and complimentary credit monitoring.
Affected (this filing): 3
Harrisburg Medical Center reported a data breach to the Montana Attorney General. The breach was reported on 2023-12-12. The breach occurred from 12/19/2022 to 12/23/2022. 17 Montana residents were affected.
Affected (this filing): 17
Harrisburg Medical Center (HMC) reported an external system breach occurring between December 19 and 23, 2022, discovered on August 24, 2023. The incident affected 147,826 individuals, including one Maine resident. The breach involved the acquisition of names and Social Security Numbers. HMC provided written notification and 12 months of Equifax Complete Premier identity theft protection services.
Affected (this filing): 147,826