DisclosureLens
UnknownFinanceMedium

Capital One, National Association

bd_aefb6a5238eab363 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 26, 2023

Filed

May 26, 2023

To disclose

4 weeks

Affected

16,779

Confidence

95%
Full breach record for Capital One, National Association →24 incidents on file

Capital One reported a data breach to the Oregon Attorney General. The breach was reported on 2023-05-26. The breach occurred during 2/1/2023 - 2/4/2023. The breach was discovered on 4/26/2023. 16,779 individuals were affected. Notice was sent on 5/26/2023.

Oregon clock✓ OR AG ≤45d4 weeks discovery → filing
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 84 days
discovery → filing · 4 weeks / 30 days

Feb 1, 2023

Begins

Apr 26, 2023

Discovered

May 26, 2023

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed16,779 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.