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REXT株式会社 Ransomware Attack

rext.jpData extortion

RansomHouseGroup

JapanCountry

Sep 1, 2026Discovered

Overview

View group profile

Domain

rext.jp

Industry

Other

Country

Japan

Discovered

5 days ago

Attack date

Sep 1, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

RansomHouse

Total victims

First seen

Jul 2026

Last seen

Sep 2026

Group status

active

Sophistication

Impact score

Threat level

2.5/10

Aggressiveness7/10

Lethality0/10

Criticality0.2/10

Status breakdown

Claimed

this victim

100.0%13

Targeted sectors

Education Financial Services Government & Defense Healthcare Manufacturing Other Professional Services Retail & E-Commerce Technology Transportation

Victim's position within group

Industry

Other

Known target sector

Country

Japan

Frequently targeted country

Other victims

View all (71)

Same group · RansomHouse

REXT Holdings Co., Ltd.
—
Claimed
REXT株式会社
Japan
Claimed
Alya Construtora
—
Claimed
[DISCLOSED]PCL Holding
—
Claimed
TECHVENTURES BANK S.A.
—
Claimed
City of McMinnville
—
Claimed

Group activity

Monthly attacks · RansomHouse

total · avg 4.3/mo