🦫Oregon State AGlinked via multistate filing link · 100%
Clustered 3 filings across 3 jurisdictions · filed Apr 17, 2026. View entity profile → Other incidents for this victim →
incident inc_63cf623254454300 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
CA OR WA
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Oct 2, 2025 → Dec 22, 2025
When the intrusion reportedly occurred, per the linked filings
Dec 19, 2025
Reported by OREGON AG, WASHINGTON AG filings
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.
Colombia Bank reported a data breach to the Oregon Attorney General. The breach was reported on 2026-04-17. The breach occurred during 10/2/2025 - 12/22/2025. The breach was discovered on 12/19/2025. 7,067 individuals were affected. Notice was sent on 4/17/2026.
Affected (this filing): 7,067
Columbia Bank, a finance sector entity reported a theft or mistake incident to the Washington Attorney General. The organization became aware of the incident on 2025-12-19 and filed notice on 2026-04-17. 1,607 Washington residents were affected. 119 days elapsed between awareness and notification. 78 days to identify the breach. 3 days to contain the breach.
Affected (this filing): 1,607
Columbia Bank notified California residents that an unknown, unauthorized third party gained access to certain Columbia Bank applications and information between October 2, 2025 and December 22, 2025. The bank engaged a forensic security firm, secured its systems, and notified law enforcement. On March 6, 2026, review concluded the data accessed contained personal information including name, Social Security number, driver's license number, and financial account number. Columbia Bank is offering affected individuals one year of Experian IdentityWorks Credit 3B monitoring. Notification was not delayed by law enforcement. The number of affected individuals is not disclosed in this sample notice.