Tor aims to defend against traffic analysis, a form of network surveillance that threatens personal anonymity and privacy, confidential business activities and relationships, and state security. Communications are bounced around a distributed network of servers called onion routers, protecting you from websites that build profiles of your interests, local eavesdroppers that read your data or learn what sites you visit, and even the onion routers themselves.
Tor's security is improved as its user base grows and as more people volunteer to run servers. Please consider volunteering your time or volunteering your bandwidth. And remember that this is development code—while we believe Tor is better than all the other options out there at what it does, it's still not a good idea to rely on any current anonymity systems if you really need strong anonymity. You can Download this free software @ http://tor.eff.org/dist/vidalia-bundles/vidalia-bundle-0.1.2.16-0.0.13.exe. The installation instruction you will find @ http://tor.eff.org/docs/tor-doc-win32.html.en
