One linked filing — more sources may join as they report · filed May 2, 2017. View entity profile → Other incidents for this victim →
incident inc_a21c6769ed8a4793 · 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.
Identity (basic) · Government ID · Financial account
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Jan 1, 2017 → Apr 11, 2017
When the intrusion reportedly occurred, per the linked filings
Apr 11, 2017
Reported by CALIFORNIA AG filing
MSA Accounting, a California CPA firm, reported suspicious IRS activity involving unauthorized 2016 tax filings by clients. Forensic investigation found no network breach, but client data (PII, SSN, financial info) was potentially accessed via compromised credentials. The firm notified the FBI and IRS, changed passwords, and offered credit monitoring guidance.
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.