In the previous post, we had written about a quick tip to hide your files and folders from your colleagues and other users of your computer. The basic premise of that tip was to create an invisible folder in your PC, which will be like any other folder, but there will be no name and no icon will be seen. So if somebody else explores the directory, that folder will not be seen and hence your files and folders within that invisible folder will remain protected.

However that method is not a foolproof method, and in case your colleagues also are reading my blog then they will also be knowing this tip and thus can access your folder easily.

A better approach will be to encrypt your sensitive files, with the help of some encryption web tool. There are plenty of them available. We would like to introduce you to four of the free file encryption utilities, which can easily encrypt your files with the click of a mouse.

FileVault: It is primarily meant for a Macintosh computer. It can be found in the Mac OS X v10.3 (“Panther”) operating system and later. It works by encrypting your home directory using the Advanced Encryption Standard (AES) algorithm with a key, which is derived from the user’s login password. The best part is that the recipient doesn’t need any software to open these files, just a password, and therefore, this utility is useful if you want to send it to somebody over the Internet, who is not having this tool in his PC.

TrueCrypt: TrueCrypt is a free open source on-the-fly encryption (OTFE) program for Microsoft Windows 2000/XP/2003/Vista and Linux. It creates a “file-hosted container” which consists of an encrypted volume with its own file system, contained within a regular file, which can then be mounted as if it were a real disk. TrueCrypt also supports device-hosted volumes, which can be created on either an individual partition or an entire disk.

AxCrypt: AxCrypt is a free, open source file encryption application for Microsoft Windows 95/98/ME/NT/2K/XP integrated into Windows Explorer. Its current cryptographic primitives are AES-128 and SHA-1.

Kruptos: Use Kruptos to encrypt files on your PC or a portable storage device. With this tool, you can also create files that self-decrypt. It uses 128 bit blowfish encryption to encrypt your files or folders which then can only be accessed with the correct password, so that only you can have access to them. You can even select to disguise the newly encrypted files name for further privacy.