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

AMERICAN DENTAL PARTNERS, INC. — April 2022 breach

Clustered 3 filings across 3 jurisdictions · filed Jul 15, 2022. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

3 filings

States

3

Affected · reported

459

First → last filing

Jul 15, 2022

Merge confidence

100%

incident inc_a8d4d7f4956d4fe1 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 3 regulatory filings. The filing describes a ransomware attack. Intrusion Apr 21, 2022, discovered Apr 21, 2022 — the first regulatory filing landed 85 days later. 459 individuals reported across the linked filings. Data reported: Government ID, PII, and Identity (basic). Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay
85days

Discovered → first regulatory filing

Filing span
0days

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 clocksMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

Sensitive data

identity_government

Incident timeline

Apr 21, 2022breach begins
Apr 21, 2022discovered
notification delay · 85 days
Jul 15, 2022first filing
—watching for filings

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

Member cascade — every filing about this breach

  1. JUL 15IN AGIN AG noticefirst filing · states nationwide total 459day 0
  2. JUL 15MT AGMT AG notice1 MT residentsday 0
  3. JUL 15MA AGMA AG noticemost recent · 1 MA residentsday 0
  4. Watching for additional filings — new sources merge into this incident automatically.

Roll-up facts — reconciled across members

Breach window
Apr 21, 2022
IN AG
Discovered
Apr 21, 2022
MT AG
Data types
Identity (basic) · Government ID · PII
MT AG + MA AG
Attack vector
Ransomware
MT AG

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)

459

Sum of filed state slices

6· 1.3% of stated

99% of the stated total lives in states whose filings carry no count — the dashed share shrinks as filings land.

US459
IN4
MT1
MA1

State AGs report only their own residents; teal bars show each state's reported slice. The gray US row is the nationwide total reported in a linked filing.

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

0 days

Cadence

~1 / 0d

vs. multi-state median

20.0× 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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