You can opt of out of that.”The simplest way to anonymously send email is to use a webmail service in the Tor Browser.
Of course, that requires signing up for a new webmail account without revealing any personal information, a difficult task given that Gmail, Outlook, and Yahoo! Runa Sandvik suggests Guerrilla Mail, a temporary, disposable email service.
(See how to enable Tor in Adium here and in Pidgin here.) But the Tor Project is working to create an IM program specifically designed to be more secure and anonymous.
That Tor IM client, based on a program called Instant Bird, was slated for release in March but is behind schedule. Google Drive and Dropbox don’t promise much in the way of privacy.
Give the recipient of the file the .onion address for that site, and they can securely and anonymously download it through their Tor Browser.
Anonymity tools for phones and tablets are far behind the desktop but catching up fast.
To avoid that problem, Lee instead suggests a different email setup, using a privacy-focused email host like Riseup.net, the Mozilla email app Thunderbird, the encryption plugin Enigmail, and another plugin called Tor Birdy that routes its messages through Tor.
Adium and Pidgin, the most popular Mac and Windows instant messaging clients that support the encryption protocol OTR, also support Tor.
When you use it to share a file, the program creates what’s known as a Tor Hidden Service—a temporary, anonymous website—hosted on your computer.
In fact, she argues that the most sensitive users should stick with better-tested desktop Tor implementations.
“If I were in a situation where I needed anonymity, mobile is not a platform I’d rely on,” she says.
A growing number of apps and even operating systems provide the option to route data over that connection, allowing you to obscure your identity for practically any kind of online service.
Some users are even experimenting with using Tor in almost all their communications.