DisclosureLens
UnknownHigh

Umpqua Bank

bd_3d603af54d5cb399 · schema v1 · pii pii-v2

Severity

High

Discovered

—

Filed

Aug 11, 2023

To disclose

—

Affected · nationwide

429,252143 in this filing

Linked

6 filings

Confidence

95%
Full breach record for Umpqua Bank →

Umpqua Bank reported a data breach to the Indiana Attorney General. The breach occurred on 2023-05-27 and was reported on 2023-08-11. 143 Indiana residents were affected. 429,252 individuals affected in total.

Incident timeline

May 27, 2023

Begins

Aug 11, 2023

Filed

This filing is one of 6 filings about the same incident.View merged incident
Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Show 1 more filing ↓up to 45d gap

Filing propagation · 6 filings · 5 states

View merged incident ↗
SEC 8-KJun 27 · first
California State AG+45d
Maine State AG+45d
Washington State AG+45d
Indiana State AG+45d · this page
New Hampshire State AG+52d

Pattern: first filing Jun 27, last Aug 18 (NH) — a 52-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.