[Bug 82052] Re: possible security issue with locked screen

[Kees Cook]

This isn't really something that can reasonably be secured against.  The
best a user can do is verify (with alt-F7, alt-F8, etc) that a new X
session has been started when they select "switch user".

I'm open to any suggestions to improve the situation, though.

Thanks!

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possible security issue with locked screen
https://launchpad.net/bugs/82052