Ransomware needs a way in. Stolen credentials are the cheapest one.

Centro Médico Especializado OSI Ransomware Attack

Ransomware victimRansomed

kazuGroup

—Country

Sep 25, 2026Discovered

Overview

View group profile

Industry

Healthcare

Discovered

13 days ago

Confidence

90%

Severity

Medium

Status

Claimed

Threat group

kazu

Total victims

First seen

Nov 2025

Last seen

Oct 2026

Group status

active

Sophistication

Impact score

Threat level

3.6/10

Aggressiveness6/10

Lethality0/10

Criticality5/10

Status breakdown

Claimed

this victim

100.0%73

Targeted sectors

Education Energy & Utilities Financial Services Government & Defense Healthcare Manufacturing Other Professional Services Technology

Victim's position within group

Industry

Healthcare

Known target sector

Other victims

View all (73)

Same group · kazu

TGD
—
Claimed
Meducar
—
Claimed
Centro Médico Especializado OSI
—
Claimed
Brazil Mobilemed
—
Claimed
Yocale
Canada
Claimed
SEPE
Angola
Claimed

Group activity

Monthly attacks · kazu

total · avg 10.4/mo