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Cyber Threat
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Ransomware victim Government & Defense

A-RMS

Listed by Emperador on

Disclosed
Oct 25, 2026
Leak-site listing date
Threat group
Emperador
73 victims listed
Country
Unknown
Sector
Government & Defense

ThreatAI analysis

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

On 25 October 2026, security firm Emperador added A-RMS to its dark web leak site, where it operates in the government & defense sector.

About the Emperador group

Emperador has listed 38 victims since August 2026.

Vulnerabilities Emperador is recorded exploiting

5 of these 5 are in the CISA Known Exploited Vulnerabilities catalog, 5 of them recorded by CISA as used in ransomware campaigns. CVEs attributed to Emperador across its reported activity. There is no indication that any of these was involved in the A-RMS incident — the source data does not record an entry point.

Incident analysis

A-RMS was listed by Emperador ransomware, a group with 73 victims recorded in this database. The listing appeared on the group's leak site on October 25, 2026.

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.

Emperador 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files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished.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 A-RMS attacked by ransomware?

Yes. A-RMS was listed as a victim of the Emperador ransomware group on October 25, 2026 and operates in the Government & Defense sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked A-RMS?

A-RMS was attacked by Emperador ransomware. Emperador is one of the most active ransomware groups, having claimed 73 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the A-RMS ransomware attack occur?

The ransomware attack on A-RMS was disclosed on October 25, 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 A-RMS ransomware attack?

The specific data stolen from A-RMS 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 Government & Defense organisation, A-RMS likely held sensitive business data, client information, and operational records.

How can organisations protect against Emperador attacks?

To defend against Emperador 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.