If you're like me and this is the first time you're hearing about this, and want to know more about the implementation, check the bottom of this page: https://

If you're like me and this is the first time you're hearing about this, and want to know more about the implementation, check the bottom of this page: https://developer.mozilla.org/en-US/Persona?redirectlocale=en-US&redirectslug=Persona https://developer.mozilla.org/en-US/Persona?redirectlocale=e... Edit: I've checked out the login process in the linked site, and it works well, but the popup window U/I seems like it's ripe for phishing attempts. It would be very easy to replicate the look of that window and fool people into thinking they're using Persona when they're not.