Can view desktop when screen is locked

[dogmatic69]

Ever since installing 12.04 I have noticed the unity bar sticking out when the screen should be locked. It is also possible to see details of the window that had focus before the screen was locked.

This was slightly off putting as there could be sensitive information in the title bar, eg: having gmail open would show the subject of a personal email.

But then today I saw something much worse, having desktop notifications through google chrome / chromium on, these popup are displayed on the lock screen allowing other people to see chat notifications and other messages that websites are using these popups for.

This seems quite similar to this bug 696085 which was claimed to be fixed almost 18 months ago. It is clearly not fixed or has a regression.

If needed I can replicate and provide a video / pictures of this happening.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.12-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
CompizPlugins: [core,composite,opengl,decor,mousepoll,regex,gnomecompat,animation,imgpng,resize,compiztoolbox,grid,vpswitch,wall,place,move,unitymtgrabhandles,workarounds,session,wobbly,fade,expo,ezoom,scale,unityshell]
Date: Sat Jun 16 23:31:36 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 886605, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.