BreachFinder
BreachFinder enables instant identification of compromised credentials and breach exposure — letting you search for your organization's emails, domains, and usernames across known breach datasets, stealer logs, and dark web credential repositories.
Accessing BreachFinder
From the left navigation menu, click Hunting → BreachFinder.
What BreachFinder Searches
BreachFinder searches across:
- Breach databases — Major data breaches where credentials were exposed
- Stealer logs — Credential data harvested by information-stealing malware (RedLine, Raccoon, Vidar, etc.)
- Dark web credential markets — Underground markets where stolen credentials are sold
- Paste sites — Public and semi-public paste sites used to dump stolen data
How to Search
Search by:
| Search Type | Example |
|---|---|
| Email address | user@example.com |
| Domain | example.com (returns all matching credentials) |
| Username | jsmith |
Search Results
For each breach match, BreachFinder returns:
- Source — Where the credential was found (breach name, stealer log, market)
- Exposure date — When the breach occurred or when the data was discovered
- Exposed data — What was included (email, password, username, additional PII)
- Severity — How sensitive the exposed data is
- Password exposure — Whether a plaintext or hashed password was included
Breach results may include sensitive credential information. Access to BreachFinder is governed by your role. Treat all results as confidential and handle according to your organization's data handling policies.
Responding to Breach Findings
When BreachFinder surfaces compromised credentials for your organization:
- Identify affected accounts — Match the exposed email or username to internal accounts
- Force password reset — Immediately require a password change for all affected accounts
- Check for reuse — Verify the exposed password is not reused on other systems (SSO, VPN, email)
- Review login logs — Look for unauthorized access using the exposed credential
- Notify affected users — Inform employees if their personal credentials were exposed
- Assess scope — Determine if the breach source contains additional sensitive data about your organization
Relationship to DarkFlash
BreachFinder is a targeted, on-demand search tool. DarkFlash provides continuous, automated monitoring — alerting you as soon as new credentials matching your organization's domains appear in dark web sources.