DisclosureLens
UnknownFinanceMedium

Columbia Bank

bd_2459fe2d347c53ee · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 19, 2025

Filed

Apr 17, 2026

To disclose

17 weeks

Affected

7,067

Linked

4 filings

Confidence

95%
Full breach record for Columbia Bank →2 incidents on file

Colombia Bank reported a data breach to the Oregon Attorney General. The breach was reported on 2026-04-17. The breach occurred during 10/2/2025 - 12/22/2025. The breach was discovered on 12/19/2025. 7,067 individuals were affected. Notice was sent on 4/17/2026.

Oregon clock✗ OR AG >45d17 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 · 78 days
discovery → filing · 17 weeks / 119 days

Oct 2, 2025

Begins

Dec 19, 2025

Discovered

Apr 17, 2026

Filed

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Filing propagation · 4 filings · 4 states

View merged incident ↗
Nebraska State AGApr 17 · first
Washington State AGApr 17 · first
California State AGApr 17 · first
Oregon State AGApr 17 · first · this page

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.