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RAND study of illicit online markets and the operational lessons they present for public policy.

Research article cataloging ransomware leak sites and explaining how their status is tracked.

Open-source tracker monitoring ransomware leak sites and publishing structured status data.

Research covering cybercriminal communications, darknets, underground forums and financial crime.

Official directory of active, verified SecureDrop instances operated by news and advocacy organizations.

Official source guide for using verified SecureDrop instances and protecting submission codes.

Reporting archive on dark-web crime, underground forums, data leaks and law-enforcement actions.

Historical public mailing-list messages documenting Tor development, research and relay operations.

Archive of Tor Project monthly reports documenting development, research and community activity.

Official archive of older Tor software, websites, mailing lists, reports and project material.

Official community forum for Tor users, relay operators, developers and onion-service administrators.

Official service-status page for Tor Project websites, bridges, directories and network services.

Tor Project hub for technical reports, open research questions, datasets and research safety guidance.

Technical specifications for Tor protocols, directory formats and onion-service behavior.

Open-source research crawler for collecting links and metadata from reachable onion pages.

UNODC report on darknet-enabled cybercrime threats and policy responses in Southeast Asia.

Tor add-on that helps onion-service operators reduce guard-discovery and related attacks.

Research archive containing dark-web authorship verification datasets and baseline models.