🐻California State AGlinked via multistate filing link · 100%
Clustered 3 filings across 3 jurisdictions · filed May 27, 2021. View entity profile → Other incidents for this victim →
incident inc_b04c41d8d3bb461d · merge_method human · confidence 100%
Discovered → first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
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.
Identity (basic) · Financial account
CA ME MT
all State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Dec 10, 2020 → Jan 15, 2021
When the intrusion reportedly occurred, per the linked filings
Apr 27, 2021
Reported by MAINE AG filing
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.
Plains Commerce Bank discovered suspicious activity related to employee email accounts. An unknown perpetrator may have gained access to ten employee email accounts between December 10, 2020 and January 15, 2021. Confirmed on January 20, 2021; data review completed April 27, 2021. Potentially exposed data includes names, addresses, SSNs, loan information, and financial account information. 3 Rhode Island residents affected.
Affected (this filing): 3
Plains Commerce Bank reported an external system breach (hacking) occurring between December 10, 2020, and January 15, 2021, discovered on April 27, 2021. The incident affected 32,268 individuals, including 19 Maine residents. Acquired data included names and financial account or credit/debit card numbers (with security codes/PINs). The bank provided written notification and 12 months of credit monitoring via Experian.
Affected (this filing): 32,268
Plains Commerce Bank reported a data breach to the Montana Attorney General. The breach was reported on 2021-05-27. The breach occurred from 12/10/2020 to 1/15/2021. 218 Montana residents were affected.
Affected (this filing): 218