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Colegio María Inmaculada (CMI) Ransomware Attack

mariainmaculada.ed.crRansomed

medusalockerGroup

Costa RicaCountry

May 5, 2026Discovered

Overview

View group profile

Domain

mariainmaculada.ed.cr

Industry

Education

Country

Costa Rica

Discovered

5 months ago

Attack date

May 5, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

medusalocker

Total victims

First seen

Nov 2025

Last seen

Oct 2026

Threat level

2.9/10

Aggressiveness7/10

Lethality0/10

Criticality1.5/10

Status breakdown

Claimed

this victim

100.0%84

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

Costa Rica

Not a listed target country

Other victims

View all (84)

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Junta de Andalucía
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Premiumfruits
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Claimed
ATCO Ltd
Canada
Claimed

Group activity

Monthly attacks · medusalocker

total · avg 12/mo