Is an open source program to protect your online privacy, consisting of a set of free software, which helps to defend you against traffic analysis, a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security. Can't help you if you just want to stay anonymous while surfing the web anonymously. The name is derived from an acronym for original software project name 'The Onion Router'. Is free software for enabling anonymous communication. Provides its users with a way to surf the Internet anonymously, without being tracked, monitored, or blocked. It protects its users from traffic analysis, which is a technique that is used to eavesdrop on users. Is a free software application which protects its users' privacy by using three layers of anonymity. Operates by encrypting communications between its users and making it difficult to trace the location of the user.

Tor is a free, open-source, volunteer-driven, anonymous network that is most commonly used for browsing the web anonymously.

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