While credential breach checkers let you verify whether a specific account appears in known breach data, leak research is a distinct and broader discipline. Leak archives and breach intelligence sources give security researchers, journalists, and threat analysts access to large-scale datasets — from classified government documents and corporate disclosures to hacker forum leaks and infostealer log dumps. These platforms serve investigative journalism, academic research, corporate due diligence, and proactive threat intelligence by surfacing information about exposed data before attackers can weaponize it. Unlike simple account lookups, leak research often involves cross-referencing documents, tracing data provenance, and analyzing the geopolitical or criminal context of a disclosure.Documentation Index
Fetch the complete documentation index at: https://mintlify.com/edoardottt/awesome-hacker-search-engines/llms.txt
Use this file to discover all available pages before exploring further.
WikiLeaks
News leaks and classified media provided by anonymous sources — the landmark whistleblower platform that has published millions of classified government and corporate documents.
Leak-Lookup
Search across thousands of data breaches — a comprehensive breach database search engine for security researchers to investigate credential and data exposure.
Snusbase
Stay on top of the latest database breaches — provides searchable access to breached databases including emails, usernames, passwords, and IP addresses.
Weleakinfo
View dehashed breached databases — an aggregated breach data search platform covering a wide range of leaked database sources.
breachdirectory.org
Check if your information was exposed in a data breach — a free public service for verifying email, username, and password exposure across known breaches.
BreachForums
Breaches, data leaks, databases and more — a threat intelligence resource for tracking newly posted breach datasets and understanding active data markets.
Siph0n Breach DB (onion site)
Breaches, data leaks, and exploits hosted as a Tor hidden service — requires the Tor Browser to access. A dark web resource for deep breach research.
Exposed Forum
The premier databreach discussion and leaks forum — a community platform where breach datasets are shared, discussed, and indexed for research.
Distributed Denial of Secrets
Journalist 501(c)(3) non-profit devoted to publishing and archiving leaks of public interest — an ethical whistleblower archive used by investigative journalists worldwide.
Have I Been Zuckered
Facebook Data Breach Checker — specifically checks whether your phone number or email was exposed in the massive 2021 Facebook data breach of 533 million users.
Cryptome
Documents for publication that are prohibited by governments worldwide — a long-running archive of declassified documents, legal filings, and government disclosures.
LeakPeek
Search for your publicly leaked passwords using an email or username — helps individuals secure their personal data by surfacing exposed credentials across breach sources.
BreachCheck.io
Free service that allows you to check and download a list of your personal data exposed in various data breaches — consumer-focused breach verification and transparency.
OCCRP Aleph
The global archive of research material for investigative reporting — maintained by the Organized Crime and Corruption Reporting Project, indexing leaked and public records.
LeakRadar
Collects publicly published infostealer logs so you can quickly check if your email credentials have been compromised by modern malware campaigns.
Offshore Leaks
Find out who’s behind more than 800,000 offshore companies, foundations and trusts from the ICIJ’s investigations including the Panama Papers and Pandora Papers.
Venacus
Search across 70+ TB of data breaches and leaked documents — one of the largest breach search engines available for security researchers.
Leaksyr
Enterprise-grade threat intelligence to identify compromised credentials and secure your digital assets against data breaches — targeted at corporate security teams.
The Siph0n Breach DB is a dark web resource accessible only via the Tor Browser. Tor (.onion) addresses are not accessible on the regular internet. Download the Tor Browser from the official Tor Project website (torproject.org) to access onion services. Exercise caution on dark web platforms and never enter personal credentials or payment information.