The Tor ("The Onion Router") network is an anonymizing peer-to-peer network of routers on the Internet which uses various techniques to bounce traffic around the Internet in such a way that traffic analysis becomes difficult if not impossible to perform. Tor is a perfect example of a dual-use technology: it can be used to avoid government-imposed Internet censorship or to protect the identity of a corporate whistleblower but at the same time it is sadly ideal for various nefarious uses.
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