I have made today your test. In Feisty the Kdm login screen suggest "bug" as username but password is required. So in my opinion there are none security problem. I don't know the behaviour in Edgy. Thanks for your report.
** Changed in: kdebase (Ubuntu) Status: Unconfirmed => Needs Info -- "Start new session" auto logs in as previous new session starter https://bugs.launchpad.net/bugs/103107 You received this bug notification because you are a member of Kubuntu Team, which is a bug contact for kdebase in ubuntu. -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs