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Ransomware Victim Construction

Interplan

Ransomware attack by Worldleaks · Disclosed February 3, 2026 · 🇩🇪 Germany

www.interplan.de

Date Disclosed
Feb 3, 2026
2026
Threat Group
Worldleaks
177 total victims
Country
🇩🇪 Germany
Industry
Construction

ThreatAI Analysis

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

About the Worldleaks group

World Leaks emerged in January 2025 as a rebrand of the Hunters International ransomware operation, shifting its focus from file encryption to solely stealing sensitive data and threatening to leak it unless a ransom is paid Worldleaks has listed 174 victims since June 2022.

Incident Analysis

Interplan was targeted by Worldleaks ransomware, one of the most active ransomware groups in our database with 177 confirmed victims globally. The attack was disclosed on February 3, 2026, when Interplan appeared on the group's dark web leak site.

Interplan is based in Germany , operating in the Construction sector. Germany ranks #2 globally for ransomware attacks, with 930 victims in our database.

Sector context: Construction firms often hold sensitive project data, client financials, and intellectual property. The industry's typically lean IT security teams can make them more vulnerable.

Worldleaks typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Sep 20, 2026 22:00 UTC.

Frequently Asked Questions

Was Interplan attacked by ransomware?

Yes. Interplan was listed as a victim of the Worldleaks ransomware group on February 3, 2026. The organisation is based in Germany and operates in the Construction sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Interplan?

Interplan was attacked by Worldleaks ransomware. Worldleaks is one of the most active ransomware groups, having claimed 177 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Interplan ransomware attack occur?

The ransomware attack on Interplan was disclosed on February 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 Interplan ransomware attack?

The specific data stolen from Interplan 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 Construction organisation, Interplan likely held sensitive business data, client information, and operational records.

How can organisations protect against Worldleaks attacks?

To defend against Worldleaks 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.