Pisenti & Brinker LLP reported a data breach to the Montana Attorney General. The breach was reported on 2023-10-19. The breach occurred from 12/1/2022 to 12/21/2022. 4 Montana residents were affected.
Affected (this filing): 4
Clustered 2 filings across 2 jurisdictions · filed Oct 19, 2023. View entity profile → Other incidents for this victim →
incident inc_f6f98e8031d54768 · merge_method deterministic · 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.
CA MT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Dec 1, 2022
When the intrusion reportedly occurred, per the linked filings
Dec 21, 2022
Reported by CALIFORNIA AG filing
Pisenti & Brinker LLP reported a data breach to the Montana Attorney General. The breach was reported on 2023-10-19. The breach occurred from 12/1/2022 to 12/21/2022. 4 Montana residents were affected.
Affected (this filing): 4
Pisenti & Brinker LLP detected unauthorized access to an employee email account on December 21, 2022. The access occurred between December 1 and December 21, 2022. The firm engaged external cybersecurity professionals for a forensic investigation. Personal information was involved, but there is no evidence of misuse. The firm is offering one year of complimentary credit monitoring via Experian IdentityWorks.
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.