katholiekamersfoort.nl Ransomware Attack

katholiekamersfoort.nl

stormousGroup

NetherlandsCountry

Jun 2, 2026Discovered

Overview

View group profile

Domain

katholiekamersfoort.nl

Industry

Education

Country

Netherlands

Discovered

about 2 months ago

Attack date

Jun 2, 2026

Confidence

85%

Severity

Medium

Status

Unknown

Threat group

stormous

Total victims

First seen

Oct 2025

Last seen

Jul 2026

Group status

active

Sophistication

Impact score

Threat level

2.2/10

Aggressiveness5/10

Lethality0.3/10

Criticality1/10

Status breakdown

Data Leaked6.9%5

Claimed2.8%2

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

Education

Known target sector

Country

Netherlands

Frequently targeted country

Other victims

View all (72)

Same group · stormous

Notice
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BN: higuchi-inc Report Error & Warning
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Data Leaked
maglificioliliana.com UPDATE-FULL DATA DUMP FREE PART1
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lorenzoni-store.com UPDATE-FULL DATA DUMP FREE PART1
—
Unknown
montechiaro-store.com UPDATE-FULL DATA DUMP FREE PART1
—
Unknown
impulso-store.com UPDATE-FULL DATA DUMP FREE PART1
—
Unknown

Group activity

Monthly attacks · stormous

total · avg 9/mo