While it may seem difficult these days to remain anonymous online, it's not impossible. We spoke with Kevin Mitnick, author of "The Art of Invisibility," who told us the one tool you should be using if you want to protect your identity. Read more: http://www.techinsider.io/ FACEBOOK: https://www.facebook.com/techinsider TWITTER: https://twitter.com/businessinsider INSTAGRAM: https://www.instagram.com/businessinsider/ TUMBLR: http://businessinsider.tumblr.com/