But it's also possible to go a step closer toward true privacy online. Mere encryption hides the content of messages, but not who's communicating. Use cryptographic anonymity tools to hide your identity, on the other hand, and network eavesdroppers may not even know where to find your communications, let alone snoop on them. "Hide in the network," security guru Bruce Schneier made his first tip for evading the NSA. "The less obvious you are, the safer you are."
Though it's hardly the sole means of achieving online anonymity, the software known as Tor has become the most vouchsafed and developer-friendly method for using the Internet incognito. The free and open source program triple-encrypts your traffic and bounces it through computers around the globe, making tracing it vastly more difficult. Most Tor users know the program as a way to anonymously browse the Web.