Clustered 2 filings across 2 jurisdictions · filing window Nov 20, 2020 → Nov 21, 2020. View entity profile → Other incidents for this victim →
incident inc_9d2b167b55c74b87 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
ME OR
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
Jun 1, 2020
When the intrusion reportedly occurred, per the linked filings
Sep 25, 2020
Reported by MAINE AG, OREGON AG filings
First Sonora Bancshares, Inc. (Sonora Bank) reported an external system breach (hacking) that affected 10,551 individuals. The incident occurred on June 1, 2020, and was discovered on September 25, 2020. Notifications were sent on November 17, 2020. The notification did not specify the types of personal information that were acquired.
Affected (this filing): 10,551
First Sonora Bancshares, Inc. ("Sonora Bank") reported a data breach to the Oregon Attorney General. The breach was reported on 2020-11-21. The breach occurred during 6/1/2020 - 8/10/2020. The breach was discovered on 9/25/2020. 10,551 individuals were affected. Notice was sent on 11/20/2020.
Affected (this filing): 10,551
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.