Ransomware Intelligence

Mairie Thiverval Grignon Ransomware Attack

mairie-thiverval-grignon.fr

medusalockerGroup

FranceCountry

May 28, 2026Discovered

Overview

View group profile

Domain

mairie-thiverval-grignon.fr

Industry

Government & Defense

Country

France

Discovered

about 2 months ago

Attack date

Jul 1, 2026

Confidence

90%

Severity

Medium

Status

Claimed

Threat group

Total victims

43

First seen

Sep 2025

Last seen

Jul 2026

Group status

active

Sophistication

0

Impact score

120

Threat level

2.3/10

Aggressiveness5/10

Lethality0/10

Criticality1.9/10

Status breakdown

Claimed

this victim

100.0%43

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

Government & Defense

Known target sector

Country

France

Frequently targeted country

Other victims

Same group · medusalocker

Group activity

Monthly attacks · medusalocker

43

total · avg 8.6/mo