Whonix ™ - Overview

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Whonix ™ is an anonymous operating system that runs like an app and routes all Internet traffic through the Tor anonymity network. It offers privacy protection and anonymity online and is available for all major operating systems.

Whonix ™ is a free and open-source desktop operating system (OS) that is specifically designed for advanced security and privacy. Based on the Tor anonymity network, Kicksecure ™ (security-focused Linux Distribution), Debian GNU/Linux and the principle of security by isolation, Whonix ™ defeats common attacks while maintaining usability. Online anonymity and censorship circumvention is attainable via fail-safe, automatic and desktop-wide use of the Tor network, meaning all connections are forced through Tor or blocked. The Tor network helps to protect from traffic analysis by bouncing communications around a distributed network of relays run by global volunteers. Without advanced, end-to-end, netflow correlation attacks, an adversary watching an Internet connection cannot easily determine the sites visited, and those sites cannot discover the user's physical location.[1]
Whonix ™ uses an extensively reconfigured Debian base (Kicksecure ™ Hardened) which is run inside multiple virtual machines (VMs) on top of the host OS. This architecture provides a substantial layer of protection from malware and IP leaks. Applications are pre-installed and configured with safe defaults to make them ready for use with minimal user input. The user may install custom applications or personalize their desktop without fear of information leaks that could lead to de-anonymization. Whonix ™ is the only actively developed OS designed to be run inside a VM and paired with Tor. Though technically a "desktop" operating system, the security and anonymity tools Whonix ™ provides also make it ideally suited for hosting secure and anonymous onion services.

Download Whonix ™ (FREE)

Whonix ™ Architecture[edit]

Whonix ™ consists of two VMs: the Whonix-Gateway ™ and the Whonix-Workstation ™. [2]

The former runs Tor processes and acts as a gateway, while the latter runs user applications on a completely isolated network. The Whonix ™ architecture affords several benefits:

  • Only connections through Tor are permitted.
  • Servers can be run, and applications used, anonymously over the Internet.
  • DNS leaks are impossible.
  • Malware with root privileges cannot discover the user's real IP address.
  • Threats posed by misbehaving applications and user error are minimized.
  • The platform has extensive security hardening.
To learn more about Whonix ™ see About and Features.

Full Spectrum Anti-Tracking Protection[edit]

Hiding your identity is harder than just hiding your IP. Internet tracking companies don't even need to know your IP address to be able to identify you. They have multiple alternative tracking technologies in their arsenal. Whonix provides full spectrum anti-tracking protection.

Table: Surveillance Technology, Impact and Whonix ™ Defenses

Surveillance Technology Impact on your Privacy Whonix ™ Tracking Protection Technology
IP address tracking IP is tied to user identity and physical location. IP cloaking using Tor
Browser fingerprinting Tracking, creating a profile of the user even if the user is already cloaking its IP. Tor Browser
Website Traffic Fingerprinting Your internet service provider (ISP) knows which websites and when you visited but does not know the exact details. And that even if the website is using https and you are using VPN. [3]

For example, if you are posting to a discussion forum, your ISP or a man-in-the-middle could know the time and that you used that discussion forum but not the exact contents of your post. However, due to the specific timing specifically over time an attack could figure out who you are.

IP cloaking using Tor
Personal keyboard typing fingerprinting Re-identification once you are typing on a website because of your personal typing style. kloak (keystroke anonymizer)
Time attacks Individual computer time can give away your identity. Boot Clock Randomization and secure network time synchronization through sdwdate (Secure Distributed Web Date)

Whonix ™ User Groups[edit]

The increasing threat of mass surveillance and repression all over the world means our freedoms and privacy are rapidly being eroded. Without precautions, the Internet service provider (ISP) and global surveillance systems can record everything done online, as IP addresses associated with network activity are easily linked with the physical location of a user's computer(s). Whonix ™ is one solution to this problem. Anyone who values privacy or does sensitive work on their desktop or online can benefit from using Whonix ™. This includes, but is not limited to:

  • Investigators and whistleblowers whose work threatens the powerful.
    • Within an isolated environment, research and evidence can be gathered without accidental exposure.
  • Researchers, government officials or business-people who may be targets of espionage.
    • Anti-malware and anti-exploit modifications lower the threat of trojans and backdoors.
  • Journalists who endanger themselves and their families by reporting on organized crime.
    • Compartmentalized, anonymous Internet use prevents identity correlation between social media and other logins.
  • Political activists under targeted surveillance and attack.
    • The usefulness of threatening the ISP in order to analyze a target's Internet use is severely limited. The cost of targeting a Whonix ™ user is greatly increased.
  • Average computer users in a repressive or censored environment.
    • Easy Tor setup and options for advanced configurations means users in repressive countries can fully access the Internet desktop-wide, not just in their browser.
  • Average computer users who simply don’t want all or some aspect of their private lives uploaded, saved and analyzed.
    • Whonix ™ does not silently upload identifying information in the background.


  1. Current practical, low-latency, anonymity designs like Tor fail when the attacker can see both ends of the communication channel (traffic going into and out of the Tor network). If you can see both flows, simple statistics based on data volume and timing can determine whether they match up.
  2. In Qubes-Whonix ™, these VMs are named sys-whonix and anon-whonix, respectively.
  3. VPNs do not even hide visited websites from your Internet Service Provider