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Confirmed4 filings · 3 statesUnverified claimConfirmedEnforcedhigh sensitivity

Merged incident · 4 filings

DAVITA INC. — September 2013 breach

Clustered 4 filings across 3 jurisdictions · filing window Nov 5, 2013 → Nov 12, 2013. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

4 filings

States

Affected · reported

11,500

First → last filing

Nov 5, 2013 → Nov 12, 2013

Merge confidence

100%

incident inc_c3b92b93261c4ce5 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 4 regulatory filings. The filing describes unauthorized access. Intrusion Sep 1, 2013–Sep 6, 2013, discovered Sep 6, 2013 — the first regulatory filing landed 60 days later. 11,500 individuals reported across the linked filings. Data reported: Government ID, PHI, Health (basic), and 3 more. Notifications rolled out on a 7-day schedule across 4 filings beginning Nov 5, 2013. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay

60days

Discovered → first regulatory filing

Filing span

7days

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 report on timeFull clock table in Litigation Timeline

Sensitive data

identity_government

Incident timeline

Sep 1, 2013breach begins

Sep 6, 2013discovered

notification delay · 60 days

Nov 5, 2013first filing

Nov 12, 2013most recent filing

Dashed segments are unestablished, not zero — they fill in as filings merge into this incident.

Member cascade — every filing about this breach

NOV 5CA AGCA AG noticefirst filing · no count statedauto-linkedday 0
NOV 5HHS OCRHHS OCR noticestates nationwide total 11,500auto-linkedday 0
NOV 5DE AGDE AG noticeno count statedauto-linkedday 0
NOV 12MA AGMA AG noticemost recent · 16 MA residentsauto-linked+7d
Watching for additional filings — new sources merge into this incident automatically.

Roll-up facts — reconciled across members

Breach window: Sep 6, 2013
Discovered: Sep 6, 2013
Data types: Financial account · Health (basic) · Identity (basic) · Government ID · PCI · PHI
Attack vector: Unauthorized Access

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)

11,500

Sum of filed state slices

16· 0.1% of stated

100% 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 filing4 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

7 days

Cadence

~1 / 2.3d

vs. multi-state median

1.1× 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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