ONCOURSE LEARNING CORPORATION — June 2018 breach
Clustered 4 filings across 4 jurisdictions · filing window Mar 8, 2019 → Mar 11, 2019. View entity profile → Other incidents for this victim →
incident inc_be41ad5f3e5d4676 · merged by deterministic · confidence 100%
Litigation Timing
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.
Sensitive data
financial_credentialsIncident timeline
No discovery date is recorded on any filing in this cluster, so the notification delay is not computable. Dashed segments fill in as filings merge.
Member cascade — every filing about this breach
- MAR 8MA AGMA AG noticefirst filing · 87 MA residentsauto-linkedday 0
- MAR 8MT AGMT AG notice17 MT residentsauto-linkedday 0
- MAR 8CA AGCA AG noticeno count statedday 0
- MAR 11NH AGNH AG noticemost recent · 32 NH residentsauto-linked+3d
- Watching for additional filings — new sources merge into this incident automatically.
Roll-up facts — reconciled across members
- Breach window
- Jun 11, 2018 – Feb 4, 2019 MT AG
- Discovered
- —
- Data types
- Credentials · Financial account · Financial credentials · Identity (basic) · PCI · PII MA AG + MT AG + CA AG +1
- Attack vector
- Unauthorized Access MT AG
Each fact cites the member filing that establishes it; when filings conflict, every value shows with its source.
Affected residents by state
per-state reported counts
State AGs report only their own residents; teal bars show each state's reported slice.
Evidence ladder — rungs this incident occupies
No leak-site claim on record for this incident.
No press coverage linked yet.
Unlocks: discovery date, data types, affected count, compliance clock.
No SEC filing or victim statement yet.
Merge provenance
- Method
- deterministic
- Confidence
- 1.00 · above the 0.85 auto-merge floor
- Audit
- Every link edge records its method, confidence and model + prompt versions (100% is the strongest edge).
Merges are reversible — a wrong link can be detached with its audit trail intact. How merging works.
Filing velocity
Spread
3 days
Cadence
~1 / 1d
vs. multi-state median
2.7× faster
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. This page states only what the linked filings agree on; each filing's own account stays on its own record, linked from the timeline below.
The weekly clock on records like this one
The Disclosure Clock is a weekly briefing on what landed in the disclosure record, and the gap between the criminals' post and the regulator's filing — measured on the whole record, with the method shown.
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