One linked filing — more sources may join as they report · filed Nov 21, 2017. View entity profile → Other incidents for this victim →
incident inc_5a9ff5a6efff45ee · merge_method deterministic
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay · Filing span — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
May 1, 2015
When the intrusion reportedly occurred, per the linked filings
Discover Financial Services filed a data breach notification with the California Attorney General. The filing lists the date of breach as May 1, 2015. The attached sample notifications are redacted and contain no substantive details regarding the nature of the breach, data types affected, or number of individuals impacted.
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.