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California School Employees Association Ransomware Attack

csea.comData extortion

RansomHouseGroup

United StatesCountry

Sep 10, 2026Discovered

Overview

View group profile

Domain

csea.com

Industry

Education

Country

United States

Discovered

about 17 hours ago

Attack date

Aug 21, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

RansomHouse

Total victims

First seen

Jul 2026

Last seen

Sep 2026

Group status

active

Sophistication

Impact score

Threat level

2.2/10

Aggressiveness6/10

Lethality0/10

Criticality0.5/10

Status breakdown

Claimed

this victim

100.0%14

Targeted sectors

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

Victim's position within group

Industry

Education

Known target sector

Country

United States

Frequently targeted country

Other victims

View all (70)

Same group · RansomHouse

Group activity

Monthly attacks · RansomHouse

total · avg 4.7/mo