One linked filing — more sources may join as they report · filed Dec 10, 2012. View entity profile → Other incidents for this victim →
incident inc_95548b7ad8e04f79 · merge_method deterministic
Discovered → first regulatory filing
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.
Government ID · Identity (basic) · Financial account
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Aug 13, 2012 → Sep 15, 2012
When the intrusion reportedly occurred, per the linked filings
Oct 10, 2012
Reported by CALIFORNIA AG filing
South Carolina Department of Revenue suffered a data breach in September 2012, discovered in October 2012. Attackers used a phishing email to steal credentials, accessed systems via Citrix, and exfiltrated encrypted tax data including SSNs and financial info. Mandiant conducted forensic investigation. Remediation included containment and credit monitoring for affected taxpayers.
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.