Leak-site post naming Cleaver-Brooks, captured by ThreatCluster

Cleaver-Brooks

anubis

Ransomware leak-site victim intelligence · EN

Data size
737 GB
Posted
Aug 10, 2026
Country
American
Industry
Industrial Machinery

Summary

Written by ThreatCluster from site fields, file listing, victim profile, leak post, screenshot

The group claims more than 700 GB of data were taken from Cleaver-Brooks. The leak states the exposed material includes HR records and related documents, operational and financial data, engineering drawings, and intellectual property. The leak page states that Cleaver-Brooks is an American boiler equipment manufacturer, notes that since 2024 it has been a subsidiary of Miura Co., Ltd, and indicates the leak post is published.

Describes what the group claims on its leak site. A listing is not confirmation that a breach occurred.

Victim profile

Founded
1929
Domains
cleaverbrooks.com
Platforms
digital monitoring systems
People named
Mr. Coleman Mr. McBride

What was taken

Major data breach at a leading industrial manufacturer.

Data categories
HR recordsHR-related documentsoperational datafinancial recordsengineering drawingsintellectual property

Also stated on the leak page

Fields this group publishes that do not map to a standard column. Labels are the site's own.

subsidiary_of
Since 2024, Cleaver-Brooks has been a subsidiary of Miura Co., Ltd.

Leak-site images (2)

Images from the victim's leak listing. Thumbnails scraped from the onion page are blurred by default — click a thumbnail to view.

ThreatCluster capture
Logo featuring the text "Cleaver Brooks" alongside a stylized flame above a hand, all in white on a black background.
onion leak page 1.3 MB