Check whether an email address has leaked
An address found in a breach opens several leads: potentially reused password, revealed associated services, account age. It is also the most useful check to run on your own address, to know whether a password needs changing.
The tools, in order
- 01Have I been pwned?freemium
The reference, free and without signup, with the date of each breach
Database of breached credentials and email addresses from known data breaches.
- 02IntelligenceXfreemium
Covers a broader set, including documents and archives
Web-based intelligence search platform aggregating pastes, leaks, darknet content, stealer logs, and public records across Tor, I2P, and surface web.
- 03DeHashed (R)freemium
Search by whole domain, useful for an organisation
Modern breach search engine indexing historical breach data over a decade old, enabling searches by email, username, password, domain, phone, and IP address.
The pitfall to avoid
An old breach describes the situation at its date, not today's. And no result does not prove safety: not all breaches are public.
🧭 The full plan
The copilot orders every step from your starting point, with pre-filled queries.
📖 The detailed guide
The full method, step by step, with edge cases.