Confirmed breach. Intrusion Aug 6, 2018, discovered Aug 6, 2018 — the first regulatory filing landed 263 days later (flagged late). 3,358 individuals reported across the linked filings.
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 clocksWashington✗ WA AG >90dFull clock table in Litigation Timeline
State AGConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforced
Affected (total reported)
3,358
Data types
—
Jurisdictions
2
MT WA
Linked filings
2
all State AG
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
Aug 6, 2018
When the intrusion reportedly occurred, per the linked filings
Port of Seattle, a government sector entity reported a unauthorized access incident to the Washington Attorney General. The organization became aware of the incident on 2018-08-06 and filed notice on 2019-04-26. 3,357 Washington residents were affected. 263 days elapsed between awareness and notification.
Affected (this filing): 3,357
WA AG >90d
🦬Montana State AGMost recentlinked via multistate filing link · 100%
Port of Seattle reported a data breach to the Montana Attorney General. The breach was reported on 2019-04-26. The breach occurred on 8/6/2018. 1 Montana residents were affected.
Affected (this filing): 1
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.