Clustered 3 filings across 3 jurisdictions · filing window Jun 2, 2023 → Jun 9, 2023. View entity profile → Other incidents for this victim →
incident inc_b4ce6367faf64a62 · 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) · Health (basic) · PHI
CA MT OR
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Feb 19, 2023 → Feb 21, 2023
When the intrusion reportedly occurred, per the linked filings
Feb 20, 2023
Reported by CALIFORNIA 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.
EpiSource, a medical coding vendor, experienced unauthorized access to its AWS environment between February 19-21, 2023. The incident was discovered on February 20, 2023. Affected data may include names, dates of birth, addresses, phone numbers, medical record numbers, health plan IDs, provider information, and clinical data such as diagnoses and medications. Social Security numbers and financial account information were not involved. EpiSource contained the incident, engaged a security firm, and enhanced security controls. Identity theft protection was offered to affected individuals.
Episource reported a data breach to the Montana Attorney General. The breach was reported on 2023-06-09. The breach occurred from 2/19/2023 to 2/21/2023. 2 Montana residents were affected.
Affected (this filing): 2
EpiSource reported a data breach to the Oregon Attorney General. The breach was reported on 2023-06-09. The breach occurred during 2/19/2023 - 2/21/2023. The breach was discovered on 2/20/20235/9/2023. 23,557 individuals were affected. Notice was sent on 4/10/20236/2/20236/9/2023.
Affected (this filing): 23,557