Facebook is to offer temporary log-ins for use on public computers. It works by having users text the letters “otp” to the number 32665. It replies with a temporary password. However, the system will require users to register their mobile phone to their Facebook account. In addition to this feature, the site will now also allow users to view logged-in sessions of their account so that they can remotely log out sessions in case they suspect improper use. Users can read about safety features at www.facebook.com/security.