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Cyber Threat
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Ransomware victim Professional Services

www.amca.org.ar

Listed by Blackwater on · organisation based in Argentina

www.amca.org.ar

Disclosed
Aug 15, 2026
Leak-site listing date
Threat group
Blackwater
11 victims listed
Country
Argentina
#14 most targeted
Sector
Professional Services

ThreatAI analysis

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

Blackwater listed www.amca.org.ar on its dark web leak site operated by Blackwater on 15 August 2026. The website is based in Argentina and operates in the Professional Services sector.

About the Blackwater group

Blackwater is a ransomware group that first surfaced in early 2026, combining file encryption with data theft and targeting healthcare organizations, with known victims including Minidoka Memorial Hospital in Idaho. Blackwater has listed 11 victims since April 2026.

Incident analysis

www.amca.org.ar was listed by Blackwater ransomware, a group with 11 victims recorded in this database. The listing appeared on the group's leak site on August 15, 2026.

www.amca.org.ar is based in Argentina and operates in the Professional Services sector. Argentina ranks #14 worldwide for ransomware disclosures, with 203 victims in this 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.

Blackwater 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files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished.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 www.amca.org.ar attacked by ransomware?

Yes. www.amca.org.ar was listed as a victim of the Blackwater ransomware group on August 15, 2026. The organisation is based in Argentina and operates in the Professional Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked www.amca.org.ar?

www.amca.org.ar was attacked by Blackwater ransomware. Blackwater is one of the most active ransomware groups, having claimed 11 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.amca.org.ar ransomware attack occur?

The ransomware attack on www.amca.org.ar was disclosed on August 15, 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 www.amca.org.ar ransomware attack?

The specific data stolen from www.amca.org.ar 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 Professional Services organisation, www.amca.org.ar likely held sensitive business data, client information, and operational records.

How can organisations protect against Blackwater attacks?

To defend against Blackwater 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.