DisclosureLens
HackingFinancial ServicesFinanceStolen CredentialsData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)CriticalContained

Capital One, National Association

bd_31bfe2681b9ffea2 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Jul 19, 2019

Filed

Apr 1, 2021

To disclose

21 months

Affected

198,419scope not determined

Confidence

66%
Full breach record for Capital One, National Association →24 incidents on file

Capital One reported a data security incident discovered on July 19, 2019, involving unauthorized access to an external system. The breach occurred on March 22-23, 2019. Capital One determined that the personal information of 198,419 customers, including Social Security numbers, was accessed. A follow-up notice was submitted to the Maine Attorney General on February 26, 2021, updating the count of affected Maine residents to 1,233. Affected individuals were offered 24 months of credit monitoring.

Maine clockDiscovered Jul 19, 2019 → Filed with AG Apr 1, 2021622d ✗ ME AG >90d21 months discovery → filing
⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 119 days
discovery → filing · 21 months / 622 days

Mar 22, 2019

Begins

Jul 19, 2019

Discovered

Apr 1, 2021

Filed

vs. sector median

+80 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed198,419 affectedView incident

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

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

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.