Ransomware Intelligence

Collège O'Sullivan Ransomware Attack

osullivan.edu

CanadaCountry

Jul 20, 2026Discovered

Overview

View group profile

Domain

osullivan.edu

Industry

Education

Country

Canada

Discovered

18 days ago

Attack date

Jul 20, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

Total victims

57

First seen

Aug 2025

Last seen

Jul 2026

Group status

active

Sophistication

0

Impact score

91

Threat level

3.1/10

Aggressiveness5/10

Lethality0/10

Criticality4.4/10

Status breakdown

Claimed

this victim

100.0%57

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

Same group · kairos

Group activity

Monthly attacks · kairos

57

total · avg 5.7/mo