Check whether your details appear in breaches
Data breaches expose billions of email addresses and passwords, and reused credentials are a leading cause of account takeovers. Checking whether your email or a password has shown up in known breaches tells you where to act — change a password, enable two-factor authentication, stop reusing a compromised one.
How to use it
- Enter the email address or password to check.
- Review whether it appears in known breach data.
- If it does, change that password everywhere you used it.
What to do about a hit
- Change the affected password immediately, and anywhere you reused it.
- Turn on two-factor authentication where available.
- Move to unique passwords stored in a password manager.
Questions people ask
Is it safe to check a password here? Reputable breach checks compare a partial fingerprint rather than sending the full password; still, prefer checking passwords you intend to retire.
A hit means I'm hacked? Not necessarily — it means that credential was exposed somewhere, which is reason enough to change it and stop reusing it.