What is Tor?
Tor is free software and an open
network that helps you defend against traffic analysis,
a form of network surveillance that
threatens personal freedom and privacy, confidential business
activities and relationships, and state security.
Learn more about Tor »
Why Anonymity Matters
Tor protects you by bouncing your communications around a
distributed network of relays run by volunteers all around
the world: it prevents somebody watching your Internet
connection from learning what sites you visit, and it prevents
the sites you visit from learning your physical location.
Get involved with Tor »
Our ProjectsLearn more about our projects »
Mike Perry throws down the research gauntlet about website fingerprinting attacks.
Tor Weekly News for November 6th.
stem 1.1 released.
For most uses, Tor provides the best available protection against a well-resourced observer. It's an open question how much protection Tor (or any other existing anonymous communications tool) provides against the NSA's large-scale Internet surveillance. On its own, Tor can't protect against attacks against vulnerabilities on your computer or its software; Tor is not the only tool you need to be secure on the internet. We're working on writing clear explanations for the issues, and the state of the research field as it stands. In the meantime, Bruce Schneier's advice may be useful.
Who Uses Tor?
People like you and your family use Tor to protect themselves, their children, and their dignity while using the Internet.
Businesses use Tor to research competition, keep business strategies confidential, and facilitate internal accountability.
Activists use Tor to anonymously report abuses from danger zones. Whistleblowers use Tor to safely report on corruption.
Journalists and the media use Tor to protect their research and sources online.
Militaries and law enforcement use Tor to protect their communications, investigations, and intelligence gathering online.