Lion File Protector
Sure your PC, external hard drive and USB key have documents, photos, etc you do not want to fall into the wrong hands.
Kruptos 2 Professional
Kruptos 2 Professional is a file security program that use 256bit encryption to prevent your private files from being modified, read or even accessed without the correct password.
Kaspersky KryptoStorage is a basic, but functional program that will allow you to create protected folders and volumes for storing confidential information.
Steganography is the art of hiding secrets in seemingly harmless files to protect information.
idoo File Encryption
idoo File Encryption is an awesome, free Windows program, that is part of the category Security software with subcategory Encryption and has been published by idooencryption.
If you share your computer with others, or even if it is only occasionally accessed by other users, there are certain files and folders that you will likely want to keep private.
File Mask is a robust security application designed to encrypt and conceal your private files from prying eyes.
Easy Folder Guard
Easy Folder Guard is a powerful application aiming to settle the problem of folder encryption and protection.
Diplomat OpenPGP Community Edition
Free OpenPGP tool for users that want the security of PGP encryption coupled with automation and ease-of-use.
Cloud services like Dropbox and Google Drive make it fast, easy and affordable to store and share data.
When you are dealing with sensitive information, you might want multiple methods of keeping it safe.
Clicksign is a free software only available for Windows.