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TuftsMedicine Ransomware Attack

tuftsmedicine.orgRansomed

cloakGroup
United StatesCountry
Sep 7, 2025Discovered

Domain

tuftsmedicine.org

Industry

Healthcare

Country

United States

Discovered

11 months ago

Attack date

Sep 7, 2025

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

cloak

Total victims

5

First seen

Sep 2025

Last seen

Jun 2026

Group status

active

Sophistication

0

Impact score

99

Threat level

1.4/10
Aggressiveness1.3/10
Lethality0/10
Criticality3.3/10

Status breakdown

Claimed
this victim
100.0%5

Victim's position within group

Industry

Healthcare

Known target sector

Country

United States

Frequently targeted country

Group activity

Monthly attacks · cloak

5

total · avg 1.3/mo

SepDecFebJun00.511.52