Confirmed breach. Intrusion Oct 3, 2016, discovered Oct 3, 2016 — the first regulatory filing landed 88 days later. 25,156 individuals reported across the linked filings.
International Association of Sheet Metal, Air, Rail & Transport Workers, Sheet Metal Workers’ Local reported a data breach to the Oregon Attorney General. The breach was reported on 2016-12-30. The breach occurred during 10/3/2016. The breach was discovered on 11/16/2016. 25,156 individuals were affected. Notice was sent on 12/30/2016.
Affected (this filing): 25,156
OR AG ≤45d
🐻California State AGMost recentlinked via multistate filing link · 100%
California state-agency breach notification for Sheet Metal Workers’ Local Union No. 104. Breach date: October 3, 2016. Data types: PII, identity, government IDs. No specific attack vector or affected count disclosed in the sample notice.
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. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.