Checker for seeing whether a phone number or profile appears in Facebook-related breach data.
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Checker for seeing whether an email appears in the historical Ashley Madison breach dataset.
Investigative reporting archive focused on dark-web markets, breaches and underground actors.
Exposure checker for seeing whether a password or email appears in known breach data.
Searchable timeline of publicly reported breaches with affected organizations, dates and data types.
Identity Theft Resource Center database documenting publicly reported US data compromises.
Leak-awareness search page for checking whether identifiers appear in exposed datasets.
Narrative podcast documenting breaches, underground actors, darknet cases and security investigations.
Public breach-awareness service for checking whether an email address appears in known data breaches.
Mozilla service that checks email addresses against known breaches and explains protective steps.
Cybernews checker for seeing whether an email or phone appears in known data leaks.
Tor Project hub for technical reports, open research questions, datasets and research safety guidance.
DARPA research program that developed domain-specific search methods for hard-to-index web content.
Research service publishing structured ransomware and cybercrime ecosystem tracking data.
Europol and EMCDDA report on darknet drug markets, policy implications and research evidence.
Research archive containing dark-web authorship verification datasets and baseline models.
Research paper on finding and organizing scholarly databases within the academic invisible web.
Official Tor archive providing recent and historical network descriptors for reproducible research.
Research paper presenting a crawler architecture for collecting dark-web data over Tor.
Research study examining the structure and technical characteristics of dark-web content and services.
Research paper describing large-scale crawling and analysis methods for onion services.
National Transportation Library record for research on discovering and cataloging hidden-web resources.
Research articles on dark-web monitoring, exposed data, cybercrime groups and external threats.
Research paper on integrating data from web databases that are not directly indexed by search engines.