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

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

about 1 month ago

Attack date

Sep 1, 2026

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

RansomHouse

Total victims

First seen

Oct 2025

Last seen

Sep 2026

Group status

active

Sophistication

Impact score

Threat level

2.3/10

Aggressiveness6/10

Lethality0/10

Criticality0.7/10

Status breakdown

Claimed

this victim

100.0%74

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

Other

Known target sector

Country

Japan

Frequently targeted country

Other victims

View all (74)

Same group · RansomHouse

PT Indo Tambangraya Megah
Indonesia
Claimed
Namibian Defence Force
Namibia
Claimed
REXT Holdings Co., Ltd.
—
Claimed
REXT株式会社
Japan
Claimed
TERCA Zilli
Brazil
Claimed
PT Pertamina (Persero)
Indonesia
Claimed

Group activity

Monthly attacks · RansomHouse

total · avg 6.2/mo