If the "Encrypt the new Ubuntu installation for security" checkbox explained that a password alone isn't physical security, and if people would remember that explanation by the time they arrived at the "Who are you?" step, that would be enough. But I don't think either of those is the case. This needs a little design work.
** Changed in: ubiquity (Ubuntu) Status: Fix Released => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/878906 Title: Not obvious that giving your account a password is not physical security Status in “gnome-control-center” package in Ubuntu: Triaged Status in “ubiquity” package in Ubuntu: Confirmed Bug description: If you have a user account with a password, someone with physical access to your computer can still access your account by holding down Shift during startup, choosing recovery mode, and changing your password. This is an intractable problem. For example, from Microsoft's "10 immutable laws of security": "If a bad guy has unrestricted physical access to your computer, it's not your computer anymore". <http://technet.microsoft.com/en-gb/library/cc722487.aspx#EIAA> However, probably it isn't obvious to a non-professional that a password alone isn't enough to secure their stuff. So perhaps, wherever Ubuntu lets you set a password (Ubiquity, System Settings "User Accounts"), it should contain a brief (very brief) explanation of this. Something like: "A password doesn’t protect against someone with physical access to the computer." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/878906/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp