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Mairie Thiverval Grignon Ransomware Attack

mairie-thiverval-grignon.frRansomed

medusalockerGroup

FranceCountry

May 28, 2026Discovered

Overview

View group profile

Domain

mairie-thiverval-grignon.fr

Industry

Government & Defense

Country

France

Discovered

2 months ago

Attack date

Jul 1, 2026

Confidence

90%

Severity

Medium

Status

Claimed

Threat group

medusalocker

Total victims

First seen

Sep 2025

Last seen

Jul 2026

Threat level

2.3/10

Aggressiveness5/10

Lethality0/10

Criticality1.8/10

Status breakdown

Claimed

this victim

100.0%61

Targeted sectors

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

Victim's position within group

Industry

Government & Defense

Known target sector

Country

France

Not a listed target country

Other victims

View all (61)

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BAKAQAH
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Department of National Defence and Canadian Armed Forces
Canada
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Estrela
Brazil
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Karneslegal
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Claimed

Group activity

Monthly attacks · medusalocker

total · avg 12.2/mo