With 3.5K followers and important professional contacts, without notice, my account has suddenly been frozen as part of LinkedIn's new security platform Persona. Unless I am prepared to provide photo's of my driving licence, passport and other sensitive information it seems I am locked out of my account. Is Persona's a responsible secure place to hold my personal information? I have no idea, it appears I just have to trust them! I don't think so.No way of contacting them without logging in, which is not possible. An absolute sham. When I think of the hours I see to have lost building up this profile; never again!