breachdirectory.org
Breach exposure lookup service for checking whether an email appears in known breach datasets.
Directory
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Published directory entries matching your search.
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breaches.nudgesecurity.com
Searchable timeline of publicly reported breaches with affected organizations, dates and data types.
idtheftcenter.org
Identity Theft Resource Center database documenting publicly reported US data compromises.
4wbwa6vcpvcr3vvf4qkhppgy56urmjcj2vagu2iqgp3z656xcmfdbiqd.onion.pet
Searches archived Facebook scraped-data collections for research on exposed public profile information.
docs.google.com
This is a no-longer-maintained Google Sheets resource collection compiled by AaronCTI, with its updated version hosted at OSINTPORTAL.COM. It categorizes links to cyber threat intelligence and open source intelligence resources for lookups including email addresses, IP addresses, social media profiles, and data breaches.
darkowl.com
A blog from DarkOwl whose analysts publish insights on darknet intelligence, threat detection and cybersecurity trends. Posts include a darknet marketplace snapshot series and articles on breach data and ransomware. The blog states it offers news, research and resources for enterprises and security professionals.
intelx.io
OSINT search platform for finding emails, domains, files, leaks, and public records across sources.
leaked.site
Leak-awareness search page for checking whether identifiers appear in exposed datasets.
subdomainradar.io
SubDomainRadar is a service that is paused. It is no longer accepting scans, API requests, or new signups while the platform changes hands. Existing account data is retained, and recurring billing for active subscriptions has been stopped. The same team offers LeakRadar, a data breach monitoring service.