In today's time of rampant information crimes, including identity theft, security is more important to the average computer user than ever. This tutorial from Linux Journal Online shows how you can use GnuPG to secure and verify data on your Linux box. (This video was created using only free and open source software tools: TightVNC, pyvnc2swf, ardour2, audacity, jackd, LAME, kolourpaint, cinelerra-cv, mjpegtools, and ffmpeg.)