Free encryption tool automatically protects your files

When it comes to a lost or stolen laptop, replacing the computer might be the least of your worries if you consider the potentially sensitive data that resides on it. TrueCrypt has a software solution that can help.

Encrypting your private PC files or folders, which involves adding password-protection, is a recommended safeguard in case your computer falls into the wrong hands. But most programs require the user to manually add encryption after the file has been created or updated.

TrueCrypt, however, is a completely free solution that works in "real time" — meaning data is automatically encrypted or decrypted right before files are loaded or saved. No user intervention is required. And it’s available for both Windows and Macs.

After downloading the small 2.85MB program, users select which volume (e.g. drive C:) to encrypt during the initial setup. Finally, you must type in a password required to access the files or folders. That’s it.

Even data that’s dragged and dropped onto the volume is automatically encrypted for your safety and convenience, plus users can also use this clever tool to protect files on an external drive, such as a USB flash drive.

Only by typing in the correct password can the files be accessed.

TrueCrypt uses encryption algorithms AES-256, Blowfish (448-bit key), CAST5, Serpent, Triple DES, and Twofish. It is based on Encryption for the Masses (E4M) 2.02a.