Clustered 3 filings across 3 jurisdictions · filing window Mar 17, 2023 → Mar 27, 2023. View entity profile → Other incidents for this victim →
incident inc_09c7c1cd274d48ef · merge_method llm · confidence 95%
Discovered → first regulatory filing
Range of discovered_at dates across filings
ME 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
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Jul 8, 2022 → Oct 3, 2022
When the intrusion reportedly occurred, per the linked filings
Oct 3, 2022
Reported by NEW HAMPSHIRE AG filing
Feb 16, 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.
Mattson Technology, Inc. reported an external system breach that occurred between July 8, 2022, and October 3, 2022, and was discovered on February 16, 2023. The breach affected 2 Maine residents, compromising their names and Social Security Numbers. The company provided written notification and offered 12 months of credit monitoring services through Equifax to those affected.
Affected (this filing): 2
Mattson Technology, Inc reported a data breach to the Montana Attorney General. The breach was reported on 2023-03-17. The breach occurred from 7/8/2022 to 10/3/2022. 2 Montana residents were affected.
Affected (this filing): 2
Mattson Technology, Inc. notified the New Hampshire AG of a data event affecting 4 NH residents. Between July 8 and Oct 3, 2022, an unauthorized actor accessed the network after employees received a suspicious email. Names and SSNs were potentially accessed. Investigation ongoing as of March 2023 filing.
Affected (this filing): 4