One linked filing — more sources may join as they report · filed May 1, 2026. View entity profile → Other incidents for this victim →
incident inc_9a9d69e726784192 · 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.
Health (basic) · Identity (basic)
FEDERAL
all HHS OCR
Earliest sighting first · deep chronology in Litigation Timeline
University of Michigan/Michigan Medicine reported to HHS OCR on 2026-05-01 an Unauthorized Access/Disclosure breach affecting 551 individuals. Breached information was located in Electronic Medical Records. No business associate was identified as involved. The covered entity is a healthcare provider and academic medical center in Michigan.
Affected (this filing): 551
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.