Qubes is a Fedora Based Linux Operating System to provide better security by using virtualization. Qubes is developed by Poland developers that includes Joanna Rutkowska, Marek Marczykowski-G??recki and many others. The first Qubes version was released on 3 Sep, 2012. Currently, Qubes is on version 3.2. It is developed under GPL v2 license its default user interface is KDE and Xfce.