Email Breach Checker
Check if your email has been compromised in data breaches
About Email Breach Checker
Check if your email address has been compromised in known data breaches, with full privacy.
How to use Email Breach Checker
- 1Enter your email address.
- 2Click "Check" — verification uses k-anonymity (only a SHA-1 prefix is sent).
- 3If no breach is found, your email is safe. Otherwise, the list of breaches shows dates and exposed data.
- 4Starter+: check up to 10 emails at once in batch mode.
Tips
- If your email appears in a breach, immediately change the password for the affected service.
- Enable two-factor authentication (2FA) on all services where your email was breached.
- Your email is never sent in full — we use the Have I Been Pwned API with k-anonymity.
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OneKitTools TeamUpdated 2.21.4