Most of us have some personal files on our computers. Hopefully no one has passwords or credit card numbers in a text file. For those who have only a few personal files we recommend that you download Lockbox. It is easy to use, and meets most users needs. If you want a program that offers more features check out TrueCrypt. It is free but packs many great features.

TrueCrypt 5 was released today, and has some great new additions:

Support for Mac OS X
New Graphical user interface for Linux version
Ability to encrypt system partitions

Via Slashdot