Prevent Pwned Passwords
What is Prevent Pwned Passwords?
Extension stats
- notifications
- storage
- contextMenus
Extension summary
Prevent Pwned Passwords helps make sure you don't use any password that's known to have been part of a data breach. If you try to use a password that's known to have been compromised, you'll get an alert.
You can choose to run it whenever you enter a password on any site, whenever you enter a password on a "Create Account" page, or only when you choose to check a password from a context menu. You can also whitelist sites, giving you greater control over what passwords are checked.
This extension hashes your password and securely checks that hash against a database of hashes known to be breached. If it's been involved in a past breach (of any account across hundreds of sites), it notifies you so you can change your password.
Note that the only data ever transmitted is a password hash. We never send a clear-text password or any identifiable information like a username or a URL.
This extension uses the Have I Been Pwned service.
Extension safety
Risk impact
Prevent Pwned Passwords requires a few sensitive permissions. Exercise caution before installing.
Risk likelihood
Prevent Pwned Passwords has earned a good reputation and can be trusted.
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