One linked filing — more sources may join as they report · filed Aug 16, 2019. View entity profile → Other incidents for this victim →
incident inc_e31eb47c4b75405b · 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.
PHI · Health (basic) · Identity (basic)
MI
all HHS OCR
Earliest sighting first · deep chronology in Litigation Timeline
University of Michigan/Michigan Medicine reported to HHS on 2019-08-16 a Hacking/IT Incident affecting 5466 individuals. Breached information located on Email. An employee was victim of an email phishing scheme exposing PHI including names, DOB, SSN, diagnoses, and lab results. The entity implemented safeguards and retrained employees.
Affected (this filing): 5,466
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.