Use our Password Breach Checker to quickly see whether your email or credentials may have appeared in known data breaches. The goal is simple: help you act fast, reduce risk, and stay safe online.

Password Breach Checker

Check if a password appears in known data breaches (via Have I Been Pwned). The password is hashed locally; only a short hash prefix is sent.

We never send or store your password. We query the HIBP API using the k-Anonymity method with Add-Padding.

Why Use a Password Breach Checker?

Data breaches occur every day; moreover, attackers often reuse stolen logins for credential stuffing. If one site leaks your password, other accounts may be at risk. Therefore, checking your exposure regularly makes a real difference.

This tool highlights potential exposure and, in addition, explains practical next steps. Consequently, you spend less time guessing and more time securing your accounts.

How the Password Breach Checker Works

Enter the email you want to evaluate. The checker compares it against reputable breach sources and then returns guidance you can use immediately. For privacy, do not paste real passwords—only check emails or usernames. We process your query securely and do not store your inputs.

What to Do if Your Email Appears in a Breach

  1. Change the password on that account immediately; furthermore, update any reused passwords elsewhere.
  2. Enable 2FA (two-factor authentication) to block unauthorized logins.
  3. Review recent activity for unfamiliar devices or sessions; however, sign out everywhere if you notice anything odd.
  4. Generate a new password with our Free Random Password Generator and store it in a manager.

Learn More About Data Breaches

Google Security Tips — practical advice to strengthen your accounts.

Have I Been Pwned — for example, check known leaks and set notifications.