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The Cecilian Bank Ransomware Attack

thececilianbank.comRansomed

stormGroup

United StatesCountry

Aug 23, 2026Discovered

Overview

View group profile

Domain

thececilianbank.com

Industry

Financial Services

Country

United States

Discovered

7 days ago

Attack date

Aug 22, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

storm

Total victims

First seen

Aug 2026

Last seen

Aug 2026

Threat level

4.2/10

Aggressiveness10/10

Lethality0.2/10

Criticality2.1/10

Status breakdown

Negotiating2.5%1

Claimed

this victim

97.5%39

Targeted sectors

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

Victim's position within group

Industry

Financial Services

Known target sector

Country

United States

Not a listed target country

Other victims

View all (126)

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Group activity

Monthly attacks · storm

total · avg 40/mo