Excalion
BreachGuard
That password was leaked. We'll tell you before you hit submit.
What is BreachGuard?
Billions of credentials have been leaked in data breaches. Most people have no idea their passwords are already in attacker databases. They keep using the same compromised credentials across every site.
BreachGuard checks your email and password against known breach databases in real time, right on the login form. It warns you before you submit compromised credentials, not after. Your passwords never leave your browser - all checks use k-anonymity to verify without exposing your data.
Features
- Email/password breach check via k-anonymity - Verifies credentials against breach databases without ever sending your full password over the network.
- Password reuse detection across sites - Identifies when you use the same password on multiple sites and flags the risk.
- Real-time password strength scoring - Evaluates password entropy and pattern weakness as you type.
- Pre-submission breach alerts - Warns you before you hit the login button, not after the damage is done.
- Breach history per domain - Shows whether the site you are logging into has been breached before and when.
- Auto login form detection - Automatically identifies login and registration forms on any page.
Who is it for?
Built for anyone who logs into websites. If you have an email and a password, BreachGuard tells you whether they have already been compromised.
- Anonymized crowdsourced intelligence (opt-in)
- You can opt out, but crowdsourced features will be disabled
- Read the privacy policy