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Collège O'Sullivan Ransomware Attack

osullivan.eduData extortion

kairosGroup

CanadaCountry

Jul 20, 2026Discovered

Overview

View group profile

Domain

osullivan.edu

Industry

Education

Country

Canada

Discovered

3 months ago

Attack date

Jul 20, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

kairos

Total victims

First seen

Oct 2025

Last seen

Oct 2026

Group status

active

Sophistication

Impact score

Threat level

3.1/10

Aggressiveness5/10

Lethality0/10

Criticality4.3/10

Status breakdown

Claimed

this victim

100.0%46

Targeted sectors

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

Victim's position within group

Industry

Education

Known target sector

Country

Canada

Frequently targeted country

Other victims

View all (46)

Same group · kairos

Slate Valley Unified School District
United States
Claimed
Le Centre National de l'Expertise Hospitalière (CNEH)
France
Claimed
Unique Repair Services
United States
Claimed
Krapf Group
United States
Claimed
Leisure Coast Kitchens
Australia
Claimed
Ville de Libercourt
France
Claimed

Group activity

Monthly attacks · kairos

total · avg 4.2/mo