breaches.nudgesecurity.com
Searchable timeline of publicly reported breaches with affected organizations, dates and data types.
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ddosecrets.com
Public-interest archive preserving leaked and released datasets for journalism and historical research.
spiegel.de
Der Spiegel instructions for submitting documents securely through its verified SecureDrop service.
arxiv.org
Research paper describing large-scale crawling and analysis methods for onion services.
ecrime.ch
Research service publishing structured ransomware and cybercrime ecosystem tracking data.
europol.europa.eu
Europol and EMCDDA report on darknet drug markets, policy implications and research evidence.
europol.europa.eu
Europol assessment of online organized crime, including criminal services and dark-web developments.
metrics.torproject.org
Historical lookup showing whether an IP address appeared as a Tor relay on a specified date.
haveibeenzuckered.com
Checker for seeing whether a phone number or profile appears in Facebook-related breach data.
ft.com
Financial Times instructions for submitting documents securely through its verified SecureDrop service.
rosap.ntl.bts.gov
National Transportation Library record for research on discovering and cataloging hidden-web resources.
flare.io
Research articles on dark-web monitoring, exposed data, cybercrime groups and external threats.
flashpoint.io
Intelligence analysis covering illicit communities, ransomware groups and underground online activity.
forbes.com
Forbes instructions for submitting documents securely through its verified SecureDrop service.
forbiddenstories.org
Forbidden Stories instructions for submitting documents securely through its verified SecureDrop service.
freedom.press
Practical guidance for journalists receiving sensitive tips and protecting confidential sources.
getty.edu
Explains how metadata and structured access affect discovery of database-backed and deep-web content.
globaleaks.org
Open-source platform used by organizations to run secure, privacy-preserving whistleblowing portals.
community.globaleaks.org
Community support forum for organizations and developers operating GlobaLeaks whistleblowing sites.
reportersunited.gr
Greekleaks instructions for submitting documents securely through its verified SecureDrop service.
haveibeenpwned.com
Public breach-awareness service for checking whether an email address appears in known data breaches.
arxiv.org
Research paper on integrating data from web databases that are not directly indexed by search engines.
arxiv.org
Research study on identifying and understanding search interfaces that expose hidden-web databases.
hyperiongray.com
Historical visualization and research record mapping a sample of linked Tor onion services.