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Umpqua Bank Ransomware Attack

umpquabank.com

clopGroup

United StatesCountry

Sep 23, 2026Discovered

Overview

View group profile

Domain

umpquabank.com

Industry

Financial Services

Country

United States

Discovered

16 days ago

Attack date

Sep 23, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

Total victims

374

First seen

Oct 2025

Last seen

Sep 2026

Group status

active

Sophistication

0

Impact score

150

Threat level

2.2/10

Aggressiveness5/10

Lethality0/10

Criticality1.4/10

Status breakdown

Claimed

this victim

100.0%374

Targeted sectors

Education Energy & Utilities Financial Services Government & Defense Healthcare Hospitality Manufacturing Other Professional Services Retail & E-Commerce Technology Transportation

Victim's position within group

Industry

Financial Services

Known target sector

Country

United States

Frequently targeted country

Other victims

Same group · clop

Group activity

Monthly attacks · clop

374

total · avg 37.4/mo