+1

+1

How is this not implemented yet?! 2017!? For a platform that is supposed to be safe/sec first

@Ghost is 100% on the money. Come on Proton. You brand yourselves as "not like the other guys" but you're failing to actually distinguish yourselves that way. Actions speak louder than your somewhat-hollow branding.

Currently, I’m able to log in to my Proton Mail account using any of my email addresses (I have around 10).

I would like to request the option to restrict account login so that only my default email address can be used for authentication, across all Proton services (Proton Mail, Proton Pass, etc.).

This feature would enhance account security by allowing me to keep my default email private and use the others only for communication purposes. Since no one else knows my default email, it would significantly reduce the risk of unauthorized access.

I purchased a 24-month Unlimited subscription last year around Christmas and haven’t used Proton for any of my sensitive accounts yet, specifically because of this issue.

I’m not upset about the cost, Proton’s free services helped me for years, and I’m glad to support the mission. But if any of my aliases (especially custom domain aliases) can be used as login credentials to access critical tools like Proton Drive, Proton Pass, or even my Proton-linked crypto wallet, then I can’t justify routing everything through one platform.

No matter how secure the infrastructure is, security relies on separation. If my identity, my recovery paths, and my storage are all linked to a single alias that can be guessed, brute-forced, or phished, then Proton becomes a single point of catastrophic failure.

Please consider implementing true separation between:

- Login credentials (obfuscated)

- Email aliases (public or semi-public)

- Recovery methods (private, out-of-band)

I want to trust Proton with more, but I need the system to respect that privacy includes architecture, not just encryption.

Implement this!

This would be really great if it could be added.

There could simply be a toggle switch in Settings: "allow logging in with aliases".

When disabled, only the main account username would be accepted as a username for logging in -- not any of the additional created e-mail addresses.

Many users employ the tactic of not revealing their permanent master username to anyone, and only e-mailing others using additional addresses.

Everyone SHOULD have a strong password and 2FA turned on -- but it's even better if potential attackers don't even know your username on top of that!

The fact they don't have it boggles the mind. And you can only find out once you have paid because you cannot create aliases before that. I will leave my yearly subscription to not reactivate, looking for other providers ... but hopefully they come to their senses in a year.

Dear Proton,

Please implement this feature.

I work in IT for large supercomputing infrastructures, no doubt as your origins are from CERN, you are aware of how easy it should be to implement access rights management feature like this.

Perhaps it could be sufficient to just add 'Access Rights Management' and then a dropdown or checkbox for each e-mailaddress where you can choose the Permissions.

E.g. below

Username 1 or Proton E-mail alias 1 |
Allow login to Proton account?: Checkbox: Yes |
E-mail can be sent from this addres?: Checkbox: No |
Can access services other than Protonmail? Checkbox: Yes |

E-mail alias 2 |
Can login to Proton account? Checkbox: No |
E--mail can be sent from this addres? Checkbox: Yes |
Can access services other than Protonmail? Checkbox: No |

E-mail alias 3 |
Can login to Proton account?: Checkbox: No |
E--mail can be sent from this addres?: Checkbox: Yes |
Can access services other than Protonmail?: Checkbox: No |

In the above manner the primary username is used to login only, and never exposed sending an e-mail.

Furthermore, other e-mail aliases cannot login or access a different Proton service, but just send e-mail, as is their purpose. These aliases can be selected from the already existing dropdown function Protonmail has.

What does this accomplish?

- The benefit of never exposing your username externally, annihilating the first coordinate of the attack surface. If you don't even have a username to begin with, you'd have to guess/bruteforce that too.

- A neat segregation of access rights, it's not necessary to be able to login with all e-mail aliases. Some are only used to send e-mail with.

- We already trust in Proton's sturdy security practices. You don't just get an ISO 27001.
But this approach also eliminates cybersecurity mistakes that might occur from the user end, accidentally exposing an e-mail address that can login, which helps a hacker who now only has to focus on a password and 2FA vector.

What if the hacker obtained our exposed e-mail and sends phishing e-mails (we all know there are sophisticated AI spellchecked & grammatically correct phishing e-mails these days) and we accidentally click on a bad link?

If this hacker obtained our password, but not the username (because we never exposed it) he will try to login with the Proton e-mail alias we use for e-mail only, which he will never be able to login with, because of access management.

Then it all comes down to robustness of security practices in Proton's platform itself, which I trust are already top notch.

Please provide us with this feature and make the picture complete.

I find it really absurd that you can log in with aliases!! Please implement this feature asap!!!
Aliases must be handled like "hide-my-email" aliases.
Thank you very much.

If this is not fixed, I'm leaving protonmail.

related issue: https://protonmail.uservoice.com/forums/284483-proton-mail/suggestions/47611028-choose-which-alias-can-log-in-to-proton

This is the second most popular Accounts & payments feature (excluding various crypto payment option requests) and it has been requested for over 7 years. Proton, please look into this!

I purchased Proton thinking that I could get the security I need to protect my accounts and email. I intentionally paid for additional addresses so I could manage some for banking and other logins that if there is a data breach someone doesn't start attempting to access my email. Right now I am daily getting attacks against my outlook email. The +alias option is useless because it exposes your real email. the passmail option may not be allowed by some institutions. The way that would have made sense is to block logging into your proton account with anything other than a unique user name that you keep to just proton while using email addresses for your account log ins. Not sure I will continue forward with proton if this option is not created in the near future.

Why isn't it already implemented ?

Its unbelievable that this is still not a feature. I have been reading around the internet and the biggest answer I get is "Proton is a supporter of the idea that security through obscurity isn’t security."

As a paid user? I dont care. I am and I expect my money to going to every bit of security possible, especially if its something that doesnt increase overhead for you and its simple to implement.

For me, my login name is something in no way associated with me and I wish it to be so. I simply dont like the idea of making information like that public. A freakin OUTLOOK can do that. But with proton, as a paid user, I am forced to make my login name public simply by sending an email. I made a switch to proton last year because I wanted to maximise my security. I just learned this is the case and I am starting to regret my decision.

Get yourself together proton. This isnt a feature difficult to implement. Costs you next to nothing.

For people not interested in feature like this, simply make it a toggle in the settings. Not an issue.

+1

Extremely important feature, please implement it. it shouldn't be that difficult to do that. Obscurity is not security but would prefer that the hackers have 0 of the 3 needed info than 1 of the 3 needed info.