DisclosureLens
State AGConfirmed1 filing · 1 stateLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedmoderate sensitivity
Incident · single filing

Anthem Blue Cross — October 2021 breach

One linked filing — more sources may join as they report · filed Nov 24, 2021. View entity profile → Other incidents for this victim →

Determination

Confirmed

Members

1 filing

States

1

Affected · reported

First → last filing

Nov 24, 2021

incident inc_e9564fb63d3742e7 · merged by deterministic

Confirmed breach. Intrusion Oct 1, 2021–Oct 14, 2021, discovered Oct 15, 2021 — the first regulatory filing landed 40 days later.

Litigation Timing

Notification delay
40days

Discovered → first regulatory filing

Not recorded for this incident

Discovery variance · Leak precedence · Materiality delta · SEC filing delay · Filing spanno leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.

Regulatory clocksCalifornia CA 60-day OK · 6dFull clock table in Litigation Timeline

Incident timeline

Oct 1, 2021breach begins
Oct 15, 2021discovered
notification delay · 40 days
Nov 24, 2021first & only filing
watching for filings

Dashed segments are unestablished, not zero — they fill in as filings merge into this incident.

Member cascade — every filing about this breach

  1. NOV 24CA AGCA AG noticeonly filing · no count statedday 0
  2. Watching for additional filings — new sources merge into this incident automatically.

Roll-up facts — reconciled across members

Breach window
Oct 1, 2021Oct 14, 2021
CA AG
Discovered
Oct 15, 2021· 14d undetected
CA AG
Data types
PHI · Identity (basic) · Health (basic)
CA AG
Response
Looked into what caused this issue · Temporarily shut down the portal account · Offering a complimentary one-year membership of Experian IdentityWorks
CA AG

Each fact cites the member filing that establishes it; when filings conflict, every value shows with its source.

Evidence ladder — rungs this incident occupies

Leak-site claim

No leak-site claim on record for this incident.

Press / market report

No press coverage linked yet.

State AG / regulator filing1 member

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

No SEC filing or victim statement yet.

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.