An overlay network will help you block unwanted eavesdroppers on the Internet. We show you some of the leading open source options.

Digital camera images often reveal personal information embedded in metadata. Several Linux tools let you remove unwanted metadata to help preserve your privacy.

The curiosity of various players on the Internet is making anonymity increasingly important. The Debian derivative Whonix offers an easy-to-install, comprehensive solution with a complete virtual work environment to protect your privacy.

The recent revelations about NSA spying have sparked renewed interest in data encryption. Encrypting at the file level is quick and easy, but if you're looking for an extra dose of protection, try encrypting the whole block device.

Maybe you can't stop the NSA, but you can still take meaningful steps to protect your privacy.

Worried about spies and criminals? Ubuntu Privacy Remix breaks down all the bridges to the Internet and converts the computer into an island of security. If you want to head back to civilization, you'll need a USB stick and plenty of patience.