@fuxoft this is, of course, absolutely true, I agree. There are users using third-party email clients where the password is required (desktop/mobile: Thunderbird, Outlook, AppleMail, Spark, AirMail). This can not be done by ProtonMail without Bridge. To maintain the security of ProtonMail, then, either official applications, Bridge or Web access (always encrypted). However, if someone gives their access information to someone else, the whole security is gone, without discussion (he is stupid).