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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

24 days ago

Attack date

Jul 20, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

kairos

Total victims

First seen

Aug 2025

Last seen

Aug 2026

Group status

active

Sophistication

Impact score

Threat level

3.4/10

Aggressiveness6/10

Lethality0/10

Criticality4.2/10

Status breakdown

Claimed

this victim

100.0%56

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

Canada

Frequently targeted country

Other victims

View all (56)

Same group · kairos

Hightech Signs, Inc.
United States
Claimed
Warwick
New Zealand
Claimed
Thermalex
United States
Claimed
LR Reed
Australia
Claimed
College O'Sullivan de Québec
—
Claimed
Collège O'Sullivan
Canada
Claimed

Group activity

Monthly attacks · kairos

total · avg 5.1/mo