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Cyber Threat
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Ransomware victim Manufacturing

Hecker Holzsystembau

Listed by Lamashtu on · organisation based in Germany

hecker-hsb.de

Disclosed
Oct 22, 2026
Leak-site listing date
Threat group
Lamashtu
63 victims listed
Country
Germany
#2 most targeted
Sector
Manufacturing

ThreatAI analysis

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

Lamashtu listed German construction firm Hecker Holzsystembau on its dark web leak site on 22 October 2026. Specializing in custom timber houses, sustainable wood construction and prefabricated buildings, it offers complete project planning and turnkey solutions for residential and commercial use.

About Hecker Holzsystembau

German construction company specializing in custom timber houses, sustainable wood construction, and prefabricated buildings. It offers complete project planning, roofing, extensions, renovations, and turnkey solutions for residential, commercial.

Source record: ransomware.live

About the Lamashtu group

Lamashtu is an extortion group that first appeared in April 2026, claiming attacks against organizations in France, Romania, and Thailand across energy, pharmaceutical, and film sectors; it has not yet been confirmed as operating actual file-encrypting ransomware rather than pure data-theft extortion. Lamashtu has listed 48 victims since April 2026.

Incident analysis

Hecker Holzsystembau was listed by Lamashtu ransomware, a group with 63 victims recorded in this database. The listing appeared on the group's leak site on October 22, 2026.

Hecker Holzsystembau is based in Germany and operates in the Manufacturing sector. Germany ranks #2 worldwide for ransomware disclosures, with 999 victims in this database.

Sector context. Manufacturing companies are frequently targeted because production downtime directly translates to financial loss. Ransomware operators exploit this time-sensitivity to demand higher ransoms and faster payment.

Lamashtu 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files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished.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 Hecker Holzsystembau attacked by ransomware?

Yes. Hecker Holzsystembau was listed as a victim of the Lamashtu ransomware group on October 22, 2026. The organisation is based in Germany and operates in the Manufacturing sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Hecker Holzsystembau?

Hecker Holzsystembau was attacked by Lamashtu ransomware. Lamashtu is one of the most active ransomware groups, having claimed 63 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Hecker Holzsystembau ransomware attack occur?

The ransomware attack on Hecker Holzsystembau was disclosed on October 22, 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 Hecker Holzsystembau ransomware attack?

The specific data stolen from Hecker Holzsystembau 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 Manufacturing organisation, Hecker Holzsystembau likely held sensitive business data, client information, and operational records.

How can organisations protect against Lamashtu attacks?

To defend against Lamashtu 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.