DisclosureLens
State AGConfirmed4 filings · 3 statesLifecycle stage 2 of 3: ConfirmedUnverified claimConfirmedEnforcedhigh sensitivity
Merged incident · 4 filings

Capital One, National Association — August 2020 breach

Clustered 4 filings across 3 jurisdictions · filing window Apr 22, 2021 May 6, 2021. View entity profile → Other incidents for this victim →

Determination

Confirmed

Members

4 filings

States

3

Affected · reported

600

First → last filing

Apr 22, 2021 May 6, 2021

Merge confidence

100%

incident inc_06c4f5b4bdf6442b · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 4 regulatory filings. The filings describe an insider incident. Intrusion Aug 20, 2020–Feb 25, 2021, discovered Mar 1, 2021 — the first regulatory filing landed 52 days later. 600 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Financial account, and 2 more. Notifications rolled out on a 14-day schedule across 4 filings beginning Apr 22, 2021. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay
52days

Discovered → first regulatory filing

Discovery variance
36days

Range of discovered_at dates across filings

Filing span
14days

Time between earliest and latest filing

Not recorded for this incident

Leak precedence · Materiality delta · SEC filing delayno leak-site claim in this cluster; no SEC 8-K in this cluster.

Regulatory clocksMaine ME AG >30d · 52dMassachusetts MA credit monitoring dueFull clock table in Litigation Timeline

Sensitive data

financial_credentialsidentity_government

Incident timeline

Aug 20, 2020breach begins
Mar 1, 2021discovered · members disagree
notification delay · 52 days
Apr 22, 2021first filing
May 6, 2021most recent filing

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

Member cascade — every filing about this breach

  1. APR 22ME AGME AG noticefirst filing · states nationwide total 219day 0
  2. MAY 6MA AGMA AG notice15 MA residents+14d
  3. MAY 6MT AGMT AG notice2 MT residents+14d
  4. MAY 6ME AGME AG noticemost recent · states nationwide total 600+14d
  5. Watching for additional filings — new sources merge into this incident automatically.

Roll-up facts — reconciled across members

Breach window
Sep 2, 2020Feb 25, 2021
ME AG
Discovered
Mar 1, 2021ME AGApr 6, 2021ME AGfilings disagree on discovery
Data types
Financial account · Financial credentials · Identity (basic) · Government ID · PCI
ME AG + MT AG + MA AG
Attack vector
Insider
ME AG

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

Count reconciliation

per-state reported counts

Nationwide (stated in a filing)

600

Sum of filed state slices

20· 3.3% of stated

97% of the stated total lives in states whose filings carry no count — the dashed share shrinks as filings land.

US600
MA15
ME3
MT2

State AGs report only their own residents; teal bars show each state's reported slice. The gray US row is the nationwide total reported in a linked filing.

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 filing4 members

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

SEC 8-K / victim statement

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

14 days

Cadence

~1 / 4.7d

vs. multi-state median

1.6× slower

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

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