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Brain Cipher is a cybercriminal ransomware group active in 2026. Also known as BrainCipher and brain_cipher, it has been associated with ransomware incidents affecting organizations in the United States, Canada, Brazil, the United Arab Emirates, Germany, the Netherlands, Spain, Austria, and the United Kingdom. Its reported victimology spans technology, health care, manufacturing, energy, professional and business services, consumer services, and food-related organizations. Brain Cipher operates a dedicated public leak platform used to list alleged victims, indicating a public-pressure component to its ransomware operations. Public reporting has attributed attacks against both commercial and operationally significant organizations to the group, although technical details and independent confirmation are limited for many individual victim claims.
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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.
13 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
22 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Reportedly conducted a ransomware attack against CCS Perfusion, a US healthcare/perfusion-services organization.
Conducting a ransomware attack against crmeyer.com, a Germany-based organization in the Professional Services sector.
Conducted a ransomware attack against Sago, a U.S.-based market-research and insights company.
Conducted a ransomware attack against ahadandco.com, an organization in the United Arab Emirates.
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.