Documentation
README
What leaked about you
Breach data answers a question nothing else answers cheaply: which services did this identity actually use. That service list is almost always worth more to an investigator than the credentials in the record — and the credentials are the part you must never touch. Using a leaked password is unauthorized access, no matter how public the dump was.
What a record actually contains, and what matters
A breach record is a row from a service's user table. Typical fields: email, username, a password hash (or plaintext, in bad cases), registration date, last login, IP address at signup, display name, date of birth, physical address, security questions, and whatever the service happened to collect.
The metadata beats the credentials, every time:
This is the opening of the README. Read the full README on GitHub.