Confirmed breach. Intrusion Dec 18, 2018, discovered Feb 20, 2019 — the first regulatory filing landed 44 days later. 1,572 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 >30dFull clock table in Litigation Timeline
State AGConfirmedLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforced
Affected (total reported)
1,572
Data types
—
Jurisdictions
2
MT WA
Linked filings
2
all State AG
Timeline
Earliest sighting first · deep chronology in Litigation Timeline
Breach window
Dec 18, 2018
When the intrusion reportedly occurred, per the linked filings
Archbright, a business sector entity reported a phishing incident to the Washington Attorney General. The organization became aware of the incident on 2019-02-20 and filed notice on 2019-04-05. 1,568 Washington residents were affected. 44 days elapsed between awareness and notification.
Affected (this filing): 1,568
WA AG >30d
🦬Montana State AGMost recentlinked via multistate filing link · 100%
Archbright reported a data breach to the Montana Attorney General. The breach was reported on 2019-04-05. The breach occurred from 12/18/2018 to 2/20/2019. 4 Montana residents were affected.
Affected (this filing): 4
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.