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mastermfg.com

Ransomware group Dark Project hits Master Manufacturing Co., Inc.

MEDIUM
·Manufacturing·US·2026-09-07

Master Manufacturing Co., Inc. — a manufacturing target operating in US has been listed by the Dark Project ransomware group on 2026-09-07. The information below reflects what the threat actor has publicly claimed on their leak site; the details have not been independently verified.

Incident Report

Target OrganizationMaster Manufacturing Co., Inc.
Threat Group
Dark Project
SummaryAbout Master Manufacturing Master Manufacturing Co., Inc. specializes in custom metal stamping and production services, leveraging over 200 years of combined design and engineering expertise. Founded in 1970 and located in southern Indiana, the company offers a range of services including laser cutting, wire bending, and heat treatment, all while maintaining a commitment to high-quality standards certified by IATF 16949. Their intended clients span various industries such as appliance, HVAC, lighting, automotive, and RV, with a focus on delivering innovative and efficient solutions. Master Manufacturing prides itself on quick turnaround times and the ability to meet specific customer needs through early design involvement and advanced manufacturing techniques. Master Manufacturing Co specializing in custom metal stamping and production services has fallen victim to a significant cyberattack. Hackers reportedly exfiltrated 36 gigabytes of sensitive data from the company’s servers. The stolen information includes SQL databases containing personal data, as well as technical plans and schematics for custom metal parts. The breach raises serious concerns regarding intellectual property theft and potential privacy violations for employees and clients.
Date of Breach2026-09-07
Discovery Date2026-09-07
RegionUS
Target Domainwww.mastermfg.com
Business SectorManufacturing
Severity
MEDIUM

Claim by Dark Project

About Master Manufacturing Master Manufacturing Co., Inc. specializes in custom metal stamping and production services, leveraging over 200 years of combined design and engineering expertise. Founded in 1970 and located in southern Indiana, the company offers a range of services including laser cutting, wire bending, and heat treatment, all while maintaining a commitment to high-quality standards certified by IATF 16949. Their intended clients span various industries such as appliance, HVAC, lighting, automotive, and RV, with a focus on delivering innovative and efficient solutions. Master Manufacturing prides itself on quick turnaround times and the ability to meet specific customer needs through early design involvement and advanced manufacturing techniques. Master Manufacturing Co specializing in custom metal stamping and production services has fallen victim to a significant cyberattack. Hackers reportedly exfiltrated 36 gigabytes of sensitive data from the company’s servers. The stolen information includes SQL databases containing personal data, as well as technical plans and schematics for custom metal parts. The breach raises serious concerns regarding intellectual property theft and potential privacy violations for employees and clients.

Posted by the Dark Project threat actor on its public leak site. This is the group's own statement and has not been independently verified by HackerFeeds.

Sources

Victim website

www.mastermfg.com

Leak post (onion / Tor)

tor

http://darkprn3d3udnhpuxknsrhft3376lrz5tenhgkrxge5hxqe46pkbrwid.onion/article?slug=master-manufacturing-co-inc

Open this URL in Tor Browser. Browsing leak sites carries real risk — view passively, never click further.

Disclaimer

HackerFeeds does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.