** Description changed:

  Binary package hint: compiz-fusion-plugins-main
  
  Reported upstream as https://bugzilla.gnome.org/show_bug.cgi?id=561567
  
  when the screensaver is active, expo mouse button shortcuts are still
  active. entering expo mode while the screensaver is up allows the user
  to click and drag the screensaver window and move it aside. the computer
  then becomes usable from behind the screensaver window, thereby making
  the "lock" feature of the screensaver quite useless.
  
  this is using 8.10 with compiz-fusion-plugins-main 0.7.8-0ubuntu2
  
- steps to reproduce:
- 1. bind a mouse button to expo
+ TEST CASE:
+ 0. install compiz and compiz-config-settings-manager
+ 1. run "ccsm" and go to the "expo" tab, then bind a mouse button to expo 
(e.g. <Shift>Button1)
  2. lock screen
- 3. activate expo with the mouse button
+ 3. activate expo with the mouse button (shift-button1)
  4. drag screensaver aside
  5. steal coworker's private data
+ 
+ 6. install update from -proposed
+ 7. logout/login
+ 8. repeat steps 2-4
+ 9. verify that the window can no longer be dragged aside

-- 
expo allows bypass of screensaver
https://bugs.launchpad.net/bugs/247088
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