Prevent Pwned Passwords
Checks password hashes against Have I Been Pwned and displays a notification if the hash has been leaked in a breach.
What is Prevent Pwned Passwords?
Prevent Pwned Passwords is a Firefox add-on by Chris Wilson. This add-on has 87 daily active users and an average user rating of 3.00. The latest version, 1.0.0, was updated 5 years ago.
By: Chris Wilson
Rating: 3.00 (3)
Version: 1.0.0 (Last updated: 2017-10-29)
Creation date: 2017-10-29
Weekly download count: NaN
Firefox on Android: Yes
Manifest version: 2
Email: Click to see
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
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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.
Prevent Pwned Passwords requires a number of risky permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Prevent Pwned Passwords if you trust the publisher.
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Prevent Pwned Passwords has earned a fairly good reputation and likely can be trusted.