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Ransomware Victim Public Sector

www.japanrebuilt.jp

Ransomware attack by Ransomhub ยท Disclosed March 5, 2025 ยท ๐Ÿ‡ฏ๐Ÿ‡ต Japan

japanrebuilt.jp

Date Disclosed
Mar 5, 2025
2025
Threat Group
Ransomhub
842 total victims
Country
๐Ÿ‡ฏ๐Ÿ‡ต Japan
Industry
Public Sector

Incident Analysis

www.japanrebuilt.jp was targeted by Ransomhub ransomware, one of the most active ransomware groups in our database with 842 confirmed victims globally. The attack was disclosed on March 5, 2025, when www.japanrebuilt.jp appeared on the group's dark web leak site.

www.japanrebuilt.jp is based in Japan , operating in the Public Sector sector. Japan ranks #11 globally for ransomware attacks, with 251 victims in our database.

Sector context: Organisations in this sector hold valuable data and operational systems that ransomware groups seek to exploit for financial gain through encryption and data exfiltration.

Ransomhub 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 โ€” 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: Aug 2, 2026 14:00 UTC.

Frequently Asked Questions

Was www.japanrebuilt.jp attacked by ransomware?

Yes. www.japanrebuilt.jp was listed as a victim of the Ransomhub ransomware group on March 5, 2025. The organisation is based in Japan and operates in the Public Sector sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked www.japanrebuilt.jp?

www.japanrebuilt.jp was attacked by Ransomhub ransomware. Ransomhub is one of the most active ransomware groups, having claimed 842 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the www.japanrebuilt.jp ransomware attack occur?

The ransomware attack on www.japanrebuilt.jp was disclosed on March 5, 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 www.japanrebuilt.jp ransomware attack?

The specific data stolen from www.japanrebuilt.jp 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 Public Sector organisation, www.japanrebuilt.jp likely held sensitive business data, client information, and operational records.

How can organisations protect against Ransomhub attacks?

To defend against Ransomhub 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.