Clustered 4 filings across 2 jurisdictions · filing window Mar 3, 2025 → Apr 10, 2025. View entity profile → Other incidents for this victim →
incident inc_62224ff6b5de482f · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Identity (basic) · Government ID · Financial account
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.
DE IN
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Dec 22, 2024
When the intrusion reportedly occurred, per the linked filings
Jan 9, 2025
Reported by DELAWARE AG filings
Substitute Teacher Service, Inc. notified individuals of a data security event where an unauthorized actor accessed database files containing names, SSNs, driver's license numbers, and financial account information. The incident was discovered on January 9, 2025, involving activity starting December 22, 2024. The company engaged forensic teams and is offering credit monitoring services.
Substitute Teacher Service, Inc. notified employees of a data security event where an unauthorized actor accessed database files containing names, SSNs, driver's license numbers, and financial account details. The incident was discovered on January 9, 2025, following suspicious activity. STS engaged forensic teams and is offering 12 months of credit monitoring.
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.
Substitute Teacher Service Inc reported a data breach to the Indiana Attorney General. The breach occurred on 2024-12-22 and was reported on 2025-03-03. 2 Indiana residents were affected. 45,886 individuals affected in total.
Affected (this filing): 45,886
Substitute Teacher Service, Inc. (STS) notified individuals of a data security event where an unauthorized actor acquired database files from STS's systems starting December 22, 2024. STS discovered suspicious activity on January 9, 2025. Affected data included names, SSNs, driver's license numbers, and financial account details. STS engaged forensic teams, enhanced security measures, and offered credit monitoring.