One linked filing — more sources may join as they report · filed Dec 1, 2017. View entity profile → Other incidents for this victim →
incident inc_f8a4d356e6454519 · 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
Henry Ford Health System reported to HHS on 2017-12-01 a Hacking/IT Incident affecting 43,563 individuals. Breached information located on Email. The breach involved an email phishing scheme exposing PHI including names, DOB, MRNs, SSNs, and treatment info. The CE provided credit monitoring, implemented safeguards, and retrained staff.
Affected (this filing): 43,563
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.