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Hollysys Asia Pacific Ransomware Attack

hollysys.comRansomed

crypto24Group

SingaporeCountry

Dec 1, 2025Discovered

Overview

View group profile

Domain

hollysys.com

Industry

Technology

Country

Singapore

Discovered

10 months ago

Attack date

Dec 1, 2025

Confidence

100%

Severity

Medium

Status

Claimed

Threat group

crypto24

Total victims

First seen

Oct 2025

Last seen

Apr 2026

Group status

active

Sophistication

Impact score

Threat level

2.7/10

Aggressiveness4.8/10

Lethality0/10

Criticality3.5/10

Status breakdown

Claimed

this victim

100.0%19

Targeted sectors

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

Victim's position within group

Industry

Technology

Known target sector

Country

Singapore

Frequently targeted country

Other victims

View all (19)

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Group activity

Monthly attacks · crypto24

total · avg 2.7/mo