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HHS OCRState AGConfirmed3 filings · 3 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedhigh sensitivity
Merged incident · 3 filings

Northwestern Health Sciences University

Clustered 3 filings across 3 jurisdictions · filing window May 21, 2019 → May 24, 2019. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

3 filings

States

3

Affected · reported

1,198

First → last filing

May 21, 2019 → May 24, 2019

Merge confidence

100%

incident inc_71a228d37a4144af · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 3 regulatory filings. The filing describes unauthorized access. 1,198 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Health (basic), and 2 more. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Filing span
3days

Time between earliest and latest filing

Not recorded for this incident

Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.

Regulatory clocksHIPAA✓ HHS notifiedMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

Sensitive data

identity_government

Incident timeline

? — ?breach window unknown
May 21, 2019first filing
May 24, 2019most recent filing

No discovery date is recorded on any filing in this cluster, so the notification delay is not computable. Dashed segments fill in as filings merge.

Member cascade — every filing about this breach

  1. MAY 21HHS OCRHHS OCR noticefirst filing · states nationwide total 1,198day 0
  2. MAY 21MT AGMT AG notice19 MT residentsday 0
  3. MAY 24MA AGMA AG noticemost recent · 5 MA residents+3d
  4. Watching for additional filings — new sources merge into this incident automatically.

Roll-up facts — reconciled across members

Breach window
—
Discovered
—
Data types
Health (basic) · Identity (basic) · Government ID · PHI · PII
HHS OCR + MT AG + MA AG
Attack vector
Unauthorized Access
HHS OCR

Each fact cites the member filing that establishes it; when filings conflict, every value shows with its source.

Count reconciliation

per-state reported counts

Nationwide (stated in a filing)

1,198

Sum of filed state slices

24· 2.0% of stated

98% of the stated total lives in states whose filings carry no count — the dashed share shrinks as filings land.

Evidence ladder — rungs this incident occupies

Leak-site claim

No leak-site claim on record for this incident.

Press / market report

No press coverage linked yet.

State AG / regulator filing3 members

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

No SEC filing or victim statement yet.

Merge provenance

Method
deterministic
Confidence
1.00 · above the 0.85 auto-merge floor
Audit
Every link edge records its method, confidence and model + prompt versions (100% is the strongest edge).

Merges are reversible — a wrong link can be detached with its audit trail intact. How merging works.

Filing velocity

Spread

3 days

Cadence

~1 / 1.5d

vs. multi-state median

2.7× faster

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. This page states only what the linked filings agree on; each filing's own account stays on its own record, linked from the timeline below.

The weekly clock on records like this one

The Disclosure Clock is a weekly briefing on what landed in the disclosure record, and the gap between the criminals' post and the regulator's filing — measured on the whole record, with the method shown.

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