Login and mailbox passwords explained

Share this page

Update: As of December 2016, Proton Mail has switched to a single password system as the default. The two-password mode described in this article is still available and supported, but is no longer the default.

Proton Mail uses two passwords to secure your account: login and mailbox.

Login password

Your Login password is the first password you enter and it authenticates you and logs you into our secure system.
Your login password is the first password you enter and it authenticates you and logs you into our secure system.


MailBox password

Your Mailbox password is the second password you enter and this unlocks and decrypts your encrypted messages locally.
Your mailbox password is the second password you enter and this unlocks and decrypts your encrypted messages locally.


Share this page

Related articles

  • Privacy Basics
Gmail is not end-to-end encrypted, and Google retains access to all your emails. Here are five steps to make Gmail more secure and the best alternative if you’re looking for genuine privacy. We explain why Gmail is not completely secure or private,
October is European Cybersecurity Month, making this the perfect time to assess your security. We’re sharing some of our most important cybersecurity guides to help.  At Proton, your security is our top priority. We believe your data belongs to you
Emails you send with most email providers aren’t private. We explain how to add password protection or enhanced encryption to messages in Gmail and Outlook and how to send a genuinely private email with Proton Mail. You can password-protect emails i