DisclosureLens
State AGConfirmed6 filings · 6 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedhigh sensitivity
Merged incident · 6 filings

International Association of Sheet Metal, Air, Rail, and Transportation Workers — September 2023 breach

Clustered 6 filings across 6 jurisdictions · filing window Nov 10, 2023 Nov 13, 2023. View entity profile → Other incidents for this victim →

Determination

Confirmed

Members

6 filings

States

6

Affected · reported

62,939

First → last filing

Nov 10, 2023 Nov 13, 2023

Merge confidence

100%

incident inc_b6f1caaf383749c0 · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 6 regulatory filings. The filings describe unauthorized access. Intrusion Sep 9, 2023, discovered Sep 9, 2023 — the first regulatory filing landed 62 days later. 62,939 individuals reported across the linked filings. Data reported: Government ID, Financial account, PII, and 1 more. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental
Notification delay
62days

Discovered → first regulatory filing

Discovery variance
31days

Range of discovered_at dates across filings

Filing span
3days

Time between earliest and latest filing

Not recorded for this incident

Leak precedence · Materiality delta · SEC filing delayno leak-site claim in this cluster; no SEC 8-K in this cluster.

Regulatory clocksMaine ME AG >30d · 31dVermont VT AG >14 bdayMassachusetts MA credit monitoring dueOregon OR AG ≤45dFull clock table in Litigation Timeline

Sensitive data

identity_government

Incident timeline

Sep 9, 2023breach begins
Sep 9, 2023discovered · members disagree
notification delay · 62 days
Nov 10, 2023first filing
Nov 13, 2023most recent filing

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

Member cascade — every filing about this breach

  1. NOV 10MA AGMA AG noticefirst filing · 334 MA residentsday 0
  2. NOV 10CA AGCA AG noticeno count statedday 0
  3. NOV 10ME AGME AG noticestates nationwide total 62,939day 0
  4. NOV 10VT AGVT AG noticeno count statedday 0
  5. NOV 10MT AGMT AG notice594 MT residentsday 0
  6. NOV 13OR AGOR AG noticemost recent · states nationwide total 62,939+3d
  7. Watching for additional filings — new sources merge into this incident automatically.

Roll-up facts — reconciled across members

Breach window
Sep 9, 2023
CA AG
Discovered
Sep 9, 2023CA AG + VT AG + MT AGOct 10, 2023ME AG + OR AGfilings disagree on discovery
Data types
Financial account · Identity (basic) · Government ID · PII
MA AG + CA AG + ME AG +2
Attack vector
Unauthorized Access
ME 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)

62,939

Sum of filed state slices

1,060· 1.7% of stated

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

US62,939
MT594
MA334
ME132

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 filing6 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
Reviewed
operator-reviewed Jun 12, 2026 · at least one link edge was human-adjudicated
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 / 0.6d

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

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