Confirmed breach. Intrusion Apr 18, 2016, discovered Apr 18, 2016 — the first regulatory filing landed 172 days later (flagged late). 540 individuals reported across the linked filings.
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.
Regulatory clocksHIPAA✗ HIPAA 60-day late · 172dFull clock table in Litigation Timeline
HHS OCRConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedhigh sensitivity
Affected (total reported)
540
Data types
4
PHI · Health (basic) · Identity (basic)
Jurisdictions
1
IL
Linked filings
1
all HHS OCR
Sensitive data
identity_government
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
Apr 18, 2016
When the intrusion reportedly occurred, per the linked filings
Northwest Community Healthcare reported to HHS on 2016-10-07 a Unauthorized Access/Disclosure affecting 540 individuals. Breached information located on Other Portable Electronic Device. A business associate left an FTP port open, exposing patient PHI (names, DOB, SSN) on the internet. The CE suspended the BA and required data destruction.
Affected (this filing): 540
HIPAA 60-day late · 172dHHS notified · 172d
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.