Latest Research on INC and The Gentlemen Ransomware: Exposed AI Infrastructure

CERUMO Co., Ltd Ransomware Attack

Ransomware victimRansomed

nightspireGroup

JapanCountry

Aug 19, 2026Discovered

Overview

View group profile

Industry

Manufacturing

Country

Japan

Discovered

2 months ago

Confidence

90%

Severity

Medium

Status

Claimed

Threat group

nightspire

Total victims

217

First seen

Oct 2025

Last seen

Oct 2026

Group status

active

Sophistication

Impact score

Threat level

2.6/10

Aggressiveness5/10

Lethality0/10

Criticality2.8/10

Status breakdown

Claimed

this victim

100.0%217

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

Manufacturing

Known target sector

Country

Japan

Frequently targeted country

Other victims

View all (217)

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Cognosis Limited
United Kingdom
Claimed
PMG Project Management Group
United Arab Emirates
Claimed
PCCC Realty LLC
—
Claimed
Nantou Shiuhkuang Senior High School.
Taiwan
Claimed
Fondy Food Pantry
United States
Claimed
The Bernard Osher Foundation
United States
Claimed

Group activity

Monthly attacks · nightspire

217

total · avg 16.7/mo