Do you carry a laptop? Do you keep sensitive files on a USB stick? Backup to CDs/DVDs?

What would happen if you lost that data, and it fell into the hands of someone unscrupulous? What if it was deliberately stolen?

Are you worried yet? Maybe it isn't a big problem now. Like the possibility of your house catching fire. Its not a problem until it happens.

Okay, enough of the scare-mongering. There is a solution. And its free. And its available for both Linux and Windows. And it's called TrueCrypt. And you can find it here.