The American Meteorological Society, founded in 1919, is a global community committed to advancing weather, water, and climate science and service.
Clustered 4 filings across 4 jurisdictions · filing window Jul 20, 2023 → Dec 15, 2023. View entity profile → Other incidents for this victim →
incident inc_dd40e13d217f40ba · merge_method human · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Materiality delta · SEC filing delay — no SEC 8-K in this cluster.
ME MT VT
Leak Site · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Apr 1, 2023
Reported by VERMONT AG filing
Apr 20, 2023
When the intrusion reportedly occurred, per the linked filings
The American Meteorological Society, founded in 1919, is a global community committed to advancing weather, water, and climate science and service.
Aug 9, 2023
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.
American Meteorological Society notified consumers of a cyber incident discovered in April 2023 where an unauthorized person accessed its systems. The incident may have involved names and other personal information. AMS engaged law enforcement, secured its network, and offered complimentary credit monitoring and identity protection services through IDX.
American Meteorological Society reported a data breach to the Montana Attorney General. The breach was reported on 2023-12-14. The breach occurred from 4/20/2023 to 4/24/2023. 2 Montana residents were affected.
Affected (this filing): 2
The American Meteorological Society experienced an external system breach (hacking) on August 9, 2023. The incident affected 557 individuals, including 5 Maine residents. The attacker acquired names and personal identifiers in combination with financial account or credit/debit card numbers (including security codes, access codes, passwords, or PINs). The Society provided written notification on December 14, 2023, and offered 12 months of credit, identity, and dark web monitoring, along with fraud insurance and a call center.
Affected (this filing): 557