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Blackwater is a ransomware and extortion threat group that emerged in March 2026 and operates a data leak site used to publicize victims and threaten publication of stolen information. Reported activity indicates the group conducts ransomware intrusions involving system compromise, data theft, and extortion, with some incidents explicitly describing data blocking or encryption alongside threats to leak confidential data. Blackwater has claimed attacks against organizations in multiple countries, including the United States, Argentina, Brazil, China, India, Portugal, and Turkey. Observed victims span healthcare, energy and utilities, hospitality and tourism, professional services, and materials-related manufacturing. Publicly attributed incidents include a claimed attack on Minidoka Memorial Hospital in Idaho, where the group asserted it had stolen a large volume of files and demanded payment under threat of disclosure. Reporting also notes a claimed attack on Medical Park Hospitals Group in Turkey, although that claim was denied. Based on available reporting, Blackwater appears to be financially motivated and uses leak-site pressure and stolen-data extortion as core elements of its operations. No high-confidence attribution to a specific state or country of origin is currently available.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
4 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
3 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Conducting a ransomware attack resulting in a data breach against Sinarmas Cepsa Pte. Ltd. / www.ptesm.com.
Conducting a ransomware attack involving system breach and data blocking against www.amca.org.ar.
Conducting a ransomware attack involving system breach and data blocking against www.shalina.com.
Conducting a ransomware attack and data breach against msgas.com.br, with stolen data described as customers’ personal data, contract information, and internal company data.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.