One linked filing — more sources may join as they report · filed Jul 29, 2021. View entity profile → Other incidents for this victim →
incident inc_e8517953f31b496e · merge_method deterministic
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay · Filing span — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
Identity (basic) · Health (basic)
FEDERAL
all HHS OCR
Earliest sighting first · deep chronology in Litigation Timeline
Eau Claire Cooperative Health reported that its business associate experienced a cyber-attack, compromising the electronic protected health information (ePHI) of 3,755 individuals. The compromised data included names, dates of birth, prescription information, and medical record numbers. The business associate implemented additional security safeguards in response.
Affected (this filing): 3,755
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.