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Confirmed3 filings · 3 statesUnverified claimConfirmedEnforcedhigh sensitivity

Merged incident · 3 filings

ON24, INC. — June 2021 breach

Clustered 3 filings across 3 jurisdictions · filing window Nov 16, 2021 → Nov 24, 2021. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

3 filings

States

Affected · reported

First → last filing

Nov 16, 2021 → Nov 24, 2021

Merge confidence

100%

incident inc_885a70f18f0a4486 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 3 regulatory filings. The filing describes a ransomware attack. Intrusion Jun 1, 2021–Jun 30, 2021. 26 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Health (basic), and 1 more. Notifications rolled out on a 8-day schedule across 3 filings beginning Nov 16, 2021. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Filing span

8days

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

Jun 1, 2021breach begins

Nov 16, 2021first filing

Nov 24, 2021most 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

NOV 16NH AGNH AG noticefirst filing · 3 NH residentsauto-linkedday 0
NOV 23CA AGCA AG noticeno count stated+7d
NOV 24MA AGMA AG noticemost recent · 23 MA residentsauto-linked+8d
Watching for additional filings — new sources merge into this incident automatically.

Roll-up facts — reconciled across members

Breach window: Jun 1, 2021 – Jun 30, 2021
Discovered: —
Data types: Employment · Health (basic) · Identity (basic) · Government ID
Attack vector: Ransomware

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

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

8 days

Cadence

~1 / 4d

vs. multi-state median

1.0× 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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