Hi Seth,

if only it would be that easy.

Suspending and locking does not circumvent the problem. The only way to
be safe is shutting down on leave and newly boot on return.

Ubuntu is not safe here. This is a major vulnerability.

I love Ubuntu and appreciate all your work. I am a user only and if I
can help, let me know.

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1532508

Title:
  Screen contents revealed briefly on resume, before even unlocking

Status in GNOME Shell:
  New
Status in Mutter:
  New
Status in gnome-shell package in Ubuntu:
  Confirmed
Status in unity package in Ubuntu:
  Fix Released
Status in unity source package in Xenial:
  Fix Released
Status in gnome-shell package in Debian:
  Confirmed

Bug description:
  [Impact]

  When lock is enabled, the screen doesn't get blank/covered by
  lockscreen before suspending, thus on early resume the content might
  be shown.

  Video showing the bug: https://youtu.be/dDOgtK1MldI

  Reproduced on Ubuntu 2015.10, Ubuntu 2014.04

  [Test case]

  1. Work on highly secret files
  2. Close the lid of your laptop and go have a break
  3. Anyone who opens the lid of the laptop can see the secret files for a half 
second before the lock screen appears

  [Possible Regression]

  Content on screen isn't painted anymore and screen stays black.

To manage notifications about this bug go to:
https://bugs.launchpad.net/gnome-shell/+bug/1532508/+subscriptions


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