Privacy over the Internet is becoming more and more important day by day. While it is believed that its impossible to obtain complete anonymity, security conscious people have striven for years to make a system that will ensure maximum anonymity and security. One such operating system that claims to give users full control over their privacy is Whonix.

Based on the Debian operating system, this OS uses Tor and VirtualBox to make one anonymous to outside world. As noted in their website: Whonix is an anonymous general purpose operating system based on Virtual Box, Debian GNU/Linux and Tor. By Whonix design, IP and DNS leaks are impossible. Not even malware with root rights can find out the user's real IP/location.

The OS is made of two virtual machines, one just runs Tor and acts a gateway to the Internet, while the other Whonix-workstation uses a completely isolated network which you can use for your work.

The Whonix website features extensive documentation that has all information to install, configure and run the OS. Some of the tasks which you can do without revealing you apart from surfing Internet are:

• Adobe Flash anonymously
• Anonymous IRC
• Anonymous Publishing
• Anonymous E-Mail with Mozilla Thunderbird and TorBirdy
• Add a proxy behind Tor (Tor -> proxy)
• Based on the Tor anonymity network.
• Can torify almost any application.
• Can torify any operating system
• Can torify Windows.
• Chat anonymously.
• Circumvent Censorship.
• Encrypted DNS 
• Encrypted Communication
• Full IP/DNS protocol leak protection.
• Hide the fact that you are using Tor 
• Hide the fact you are using Whonix
• Isolating Proxy
• Java anonymously
• Javascript anonymously
• Location/IP hidden servers
• Prevents anyone from learning your IP.
• Prevents anyone from learning your physical location.

You can download the OS images from here.