Identity Theft Resource Center database documenting publicly reported US data compromises.
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Research study on identifying and understanding search interfaces that expose hidden-web databases.
Leak-awareness search page for checking whether identifiers appear in exposed datasets.
Search engine for finding indexed Tor onion services, with abuse filtering and public documentation.
Study of whether website fingerprinting can distinguish and identify Tor onion-service traffic.
Open-source command-line tool that queries multiple onion search engines and exports results.
Python package that queries several search engines to find indexed Tor onion pages.
University guide to finding databases and information that ordinary search engines do not index.
ERIC record for a guide to finding specialized databases and other web content missed by search engines.
Research paper on integrating data from web databases that are not directly indexed by search engines.
Europol assessment of online organized crime, including criminal services and dark-web developments.
Intelligence analysis covering illicit communities, ransomware groups and underground online activity.
RAND study of illicit online markets and the operational lessons they present for public policy.
Open-source interface and API project for searching indexed onion content.
Guide to search tools and databases that surface information outside conventional web indexes.
Federated search portal querying science databases and repositories across many countries.
DARPA research program that developed domain-specific search methods for hard-to-index web content.
Explains federated searching across government science databases often described as the deep web.
Research and explainers on dark-web investigations, criminal forums and threat-intelligence methods.
Searchable timeline of publicly reported breaches with affected organizations, dates and data types.
WikiLeaks archive for searching the Sony email release and related historical documents.
Public-health research measuring harmful-content availability and searches on the Tor network.
Official interface for exploring public Tor relay and bridge metadata from Onionoo.
Europol and EMCDDA report on darknet drug markets, policy implications and research evidence.