Well, the points you have mentioned are also dubious for mainstream Linux environment, not only for Qubes, because they suppose a malicious app already installed in the system.
Other point are, however, accidental interferences with lockscreen. For example, I sometimes see Thunderbird popup on the lockscreen. I don't consider Thunderbird to be a malicious app (if it was, it would probably send my emails via Internet, which would be more practical), but it still leaks few information. There are also some complaints by other users, see discussions about Physlock (which might be also a way to address these problem). -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/748d54f3-b9d3-4aa6-8ec2-7b1b5456f2ef%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.