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Cyber Threat
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Ransomware victim Financial Services

Macquarrie

Listed by Storm on · organisation based in Australia

macquarrie.com.au

Disclosed
Sep 3, 2026
Leak-site listing date
Threat group
Storm
118 victims listed
Country
Australia
#10 most targeted
Sector
Financial Services

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Storm. Figures and technique mappings are quoted from the source data, not inferred.

Storm listed Macquarrie on its dark web leak site on 3 September 2026, specialized in diesel engine management solutions for over 70 years across various industries including mining and agriculture.

About Macquarrie

Macquarrie specializes in diesel engine management solutions, telemetry solutions, and VK debarkers for milling operations. With over 70 years of experience, they provide a comprehensive range of products including controllers, displays, and monitoring instrumentation tailored for various industries such as mining, agriculture, and marine. The company prides itself on customer-focused service, offering local technical support, extensive after-sales assistance, and expert software programming. As the exclusive Australian agents for Valon Kone Oy, Macquarrie is recognized for its expertise in debarking solutions for sawmills. The company headquarters is located in Unit 1/600 Lorimer Street, Port Melbourne, VIC 3207, Australia. 11-50 Employees

Source record: ransomware.live

About the Storm group

Storm has listed 84 victims since August 2026.

Incident analysis

Macquarrie was listed by Storm ransomware, a group with 118 victims recorded in this database. The listing appeared on the group's leak site on September 3, 2026.

Macquarrie is based in Australia and operates in the Financial Services sector. Australia ranks #10 worldwide for ransomware disclosures, with 409 victims in this database.

Sector context. Financial sector organisations are targeted for their access to funds, sensitive financial data, and the reputational damage a public breach can cause. Regulatory requirements also increase recovery costs.

Storm typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was Macquarrie attacked by ransomware?

Yes. Macquarrie was listed as a victim of the Storm ransomware group on September 3, 2026. The organisation is based in Australia and operates in the Financial Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Macquarrie?

Macquarrie was attacked by Storm ransomware. Storm is one of the most active ransomware groups, having claimed 118 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Macquarrie ransomware attack occur?

The ransomware attack on Macquarrie was disclosed on September 3, 2026. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Macquarrie ransomware attack?

The specific data stolen from Macquarrie has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Financial Services organisation, Macquarrie likely held financial records, client data, and transaction histories.

How can organisations protect against Storm attacks?

To defend against Storm and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.