Clustered 8 filings across 8 jurisdictions · filing window Dec 8, 2023 → Dec 13, 2023. View entity profile → Other incidents for this victim →
incident inc_a894ac2d61974bc9 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Government ID · Identity (basic)
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.
CA ME MT NH OR SC VT WA
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
8 filings across 8 jurisdictions · Dec 8, 2023 – Dec 13, 2023 · 2 milestones
May 7, 2023 → May 9, 2023
When the intrusion reportedly occurred, per the linked filings
May 9, 2023
Reported by VERMONT AG, CALIFORNIA AG, WASHINGTON AG, MAINE AG filings
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.
Norton Healthcare, Inc. reported an external system breach (hacking) occurring between May 7 and May 9, 2023. The incident affected approximately 2,500,000 individuals, including 385 Maine residents. Acquired data included names combined with driver's license numbers. Norton Healthcare notified affected individuals in writing on December 8, 2023, and provided 24 months of credit monitoring and identity theft protection through Kroll.
Affected (this filing): 2,500,000
Norton Healthcare, Inc reported a data breach to the Montana Attorney General. The breach was reported on 2023-12-08. The breach occurred from 5/7/2023 to 5/9/2023. 310 Montana residents were affected.
Affected (this filing): 310
Norton Healthcare, Inc. experienced a ransomware attack discovered on May 9, 2023. Unauthorized access to network storage devices occurred between May 7 and May 9, 2023. Affected data included PHI, PII (SSN, DOB, contact info), financial account numbers, and government IDs for patients, employees, and dependents. Norton Healthcare notified federal law enforcement, engaged forensic experts, terminated access, and offered two years of identity monitoring via Kroll.
Norton Healthcare, Inc., a health sector entity reported a unauthorized access incident to the Washington Attorney General. The organization became aware of the incident on 2023-05-09 and filed notice on 2023-12-08. 1,872 Washington residents were affected. 213 days elapsed between awareness and notification. 2 days to identify the breach. 0 days to contain the breach.
Affected (this filing): 1,872
South Carolina AG notice filed by Norton Healthcare Inc. regarding a security breach. The source PDF text extraction returned empty content (only page markers), preventing extraction of breach specifics, affected counts, or data types. Filing is classified as initial.
Norton Healthcare, Inc. reported a ransomware incident discovered on May 9, 2023, involving unauthorized access to network storage devices between May 7-9, 2023. The incident impacted personal information including names, SSNs, DOBs, health info, and financial account numbers. Norton Healthcare notified law enforcement, engaged forensic experts, and offered two years of identity monitoring via Kroll.
State AG breach notification filed by Norton Healthcare, Inc. on December 11, 2023. The attachment content was empty, preventing extraction of incident details, dates, or affected individual counts.
Norton Healthcare Inc reported a data breach to the Oregon Attorney General. The breach was reported on 2023-12-13. The breach occurred during 5/7/2023 - 5/9/2023. The breach was discovered on 5/9/20237/7/2023. 2,500,000 individuals were affected. Notice was sent on 12/8/202312/21/2023.
Affected (this filing): 2,500,000