Re:Bitwarden: Generate a Username
by hawski on Wednesday May 04, 2022 @09:40AM
(#31260232)
The usual benefit is that it makes it unguessable. If someone knows your mycatchalldomain he can guess valid e-mail addresses. That way you can be reasonably sure that if someone else is sending e-mails to a specific address the address got leaked.
[ Parent
| on HN ]
I started thinking of usernames as less secure passwords and therefore randomizing them a few years ago but never thought about the possibility of randomizing the email too. Not only does it help on the spam side of receiving mail but it can help on the login security front since knowing your email address no longer eliminates 33-50% of your login details. It sounds like this is a great enhancement in almost all cases: automated email randomization that is service dependent and also username randomization when you have a site with separate username than your email.
Spammers will guess anyway. And I happily trade the chance that some spammer guesses <servicename>@ for the convenience that I don't have to look up every single (spam-)email that I get. Maybe if a service would do some kind of "translation" I would consider using it (like this apple service or duckduckgo's email).
1Password has Fastmail integration that maps the random email back to the service: https://1password.com/fastmail/
Downside is you have to use 1password AND fastmail obv.