🦬Montana State AG
Clustered 3 filings across 3 jurisdictions · filed Mar 22, 2022. View entity profile → Other incidents for this victim →
incident inc_b3063799014549ef · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
CA MT NH
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
Nov 10, 2021
When the intrusion reportedly occurred, per the linked filings
Nov 12, 2021
Reported by CALIFORNIA AG filing
Jan 13, 2022
Reported by NEW HAMPSHIRE 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.
Major League Baseball Players Benefit Plan reported a data breach to the Montana Attorney General. The breach was reported on 2022-03-22. The breach occurred from 11/10/2021 to 11/11/2021. 22 Montana residents were affected.
Affected (this filing): 22
The Major League Baseball Players Benefit Plan reported a ransomware incident affecting Horizon Actuarial Services, LLC, which processed plan data. Unauthorized actors accessed servers on Nov 10-11, 2021, exfiltrating personal data including names, SSNs, and financial info. The plan paid a ransom and engaged forensic specialists. Notifications were sent to affected individuals in Jan 2022, offering 24 months of credit monitoring.
Major League Baseball Players Benefit Plan notified NH AG of a breach at vendor Horizon Actuarial Services. Unauthorized access occurred Nov 10-11, 2021. Stolen data included names, SSNs, DOBs, and financial account info. 39 NH residents affected. Ransom was paid to threat actor. Notifications sent March 22, 2022.
Affected (this filing): 39