With the way the new home page works, remember that regardless of whether or not you have Auto-security activated, the visibility of the tools that display on your page will now be controlled by your employee ID.  So if your employee ID doesn't have access to a tool, it will show as grayed-out in the tool list, so it cannot be accessed at all.  Someone who does have access would need to log in with their ID first to set the tool list up with the proper permissions.