



It’s effectively a series of anonymized VPN tunnels. Encryption established by the originating browser prevents any snooper learning more about the full pathway. No router knows about anything except the immediately previous and successive connections. Each session, which lasts about 10 minutes, creates a “circuit” through a randomly selected set of routers. The Tor browser, a multi-platform Web viewer that relies on passing through a series of encrypted tunnels to and between Tor routers that are run by volunteers and organizations around the world. Each Tor session creates a “circuit” through intermediate routers, none of which knows the full path.
