Proton Pass was developed mainly by the team behind SimpleLogin, an email alias company that Proton acquired last year. The password manager features a 32-byte random vault key that only the user can access, an additional level of encryption at the item level, and the same sharing securities tested on the company’s calendar and drive systems. Usernames, websites, and emails can all be encrypted alongside newly created email aliases and notes — none of which the company can access.
