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Ransomware Victim Construction

Soderstrom Architects, LTD

Ransomware attack by Ransomhouse · Disclosed December 1, 2025 · 🇺🇸 United States

www.sdra.com

Date Disclosed
Dec 1, 2025
2025
Threat Group
Ransomhouse
148 total victims
Country
🇺🇸 United States
Industry
Construction

ThreatAI Analysis

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

About the Ransomhouse group

RansomHouse is a double-extortion RaaS operation active since late 2021, attributed to the threat actor "Jolly Scorpius," targeting over 120 organizations across healthcare, finance, transportation, and government, recently upgrading to a multi-layered dual-key encryption architecture. Ransomhouse has listed 206 victims since June 2021.

Incident Analysis

Soderstrom Architects, LTD was targeted by Ransomhouse ransomware, one of the most active ransomware groups in our database with 148 confirmed victims globally. The attack was disclosed on December 1, 2025, when Soderstrom Architects, LTD appeared on the group's dark web leak site.

Soderstrom Architects, LTD is based in United States , operating in the Construction sector. United States ranks #1 globally for ransomware attacks, with 9,509 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.

Ransomhouse 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 16, 2026 10:00 UTC.

Frequently Asked Questions

Was Soderstrom Architects, LTD attacked by ransomware?

Yes. Soderstrom Architects, LTD was listed as a victim of the Ransomhouse ransomware group on December 1, 2025. The organisation is based in United States and operates in the Construction sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Soderstrom Architects, LTD?

Soderstrom Architects, LTD was attacked by Ransomhouse ransomware. Ransomhouse is one of the most active ransomware groups, having claimed 148 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Soderstrom Architects, LTD ransomware attack occur?

The ransomware attack on Soderstrom Architects, LTD was disclosed on December 1, 2025. 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 Soderstrom Architects, LTD ransomware attack?

The specific data stolen from Soderstrom Architects, LTD 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, Soderstrom Architects, LTD likely held sensitive business data, client information, and operational records.

How can organisations protect against Ransomhouse attacks?

To defend against Ransomhouse 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.