Social Source Commons

Firefox is the popular open source web browser from Mozilla

A multi-protocol Instant Messaging (IM) client

Free software for anonymous Internet communication.

Enigmail is an extension to the mail client of Mozilla / Netscape and Mozilla Thunderbird which allows users to access the authentication and encryption features provided by GnuPG

a voip/IM client like Skype, but based on open protocols

VaultletSuite 2 Go is privacy protecting software that installs on your hard drive or your thumb/USB drive. It uses Open Source 2048 bit RSA public key and 256 AES encryption, and provides easy-to-use (transparent) encrypted and controllable email and password protects important files.

Free virus protection for your home PC

An email encryption tool that is easy to use.

Darik's Boot and Nuke ("DBAN") is a self-contained boot floppy that securely wipes the hard disks of most computers.

an easy to use and reliable program for imaging and backing up partitions and logical drives

A free anti-spyware protection tool developed by GRISOFT for home use

FreeUndelete can help lost data from accidentally deleted files

Freenet is a decentralized censorship-resistant peer-to-peer distributed data store

GPGshell is a graphic interface for GnuPG that allows you to use the cryptographic software GnuPG in a easy and user friendly way

Gmail is a web-based email with very user-friendly interface and huge storage capacity

The GNU Privacy Guard (GnuPG) enables people to securely exchange messages and to secure files with both privacy and strong authentication. GnuPG is a free software replacement for the PGP suite of cryptographic software.

Guardian Project port to Android: https://guardianproject.info/code/gnupg/

Hushmail is a Web-based e-mail service that lets you send and receive email in total security

MP3Stego will hide information in MP3 files.

An Open Source password manager that encrypts all information.

Portable Gaim is the versatile Gaim instant messaging client packaged as a portable app, so you can take your IM settings and buddy lists with you. The Off-the-record plugin is also included for secure, encrypted messaging

Free Spam Filter for Outlook and Outlook Express

TorPark allows users to plug in a small USB adapter and run the program compilation and have a virtual secure and anonymous connection to the internet leaving no tracks behind.

TrueCrypt is a free open source on-the-fly encryption (OTFE) program for Microsoft Windows XP/2000/2003 and Linux. It allows one to create a virtual encrypted disk within a file and then mount it as a real disk

ZipGenius is a backup tool that allows you to both compress (zip) and decompress (unzip) your archive

PGPi is the international variant of PGP (Pretty Good Privacy), a public key encryption program originally written by Phil Zimmermann in 1991.

PC firewall software.

Firewall software

Integrated anti-virus, anti-spyware, firewall, anti-spam, anti-phishing, and backup technologies

Firewall software

Firewall software

Firewall software

Professional password manager with strong encryption and Palm support

Online data backup.

Shadow 3 enables automatic, continuous back up of photo, music, data, and video files to virtually any attached storage device.

Free firewall software

Syncronize Backup is a backup software for Windows platform that copies data directly on the hard disk or CD-rom

Freeware to backup and synchronize files.

Detects insecure versions of applications installed on your computer and verifies that Microsoft patches are installed

Tool of hiding information on the contents of the file within another file!

BartPE (Bart`s Preinstalled Environment) enables you to boot from a CD-Rom and have full read/write access to NTFS volumes

Backup your files, FTP folders, MySQL databases and websites.

Protection against malicious Internet content by restricting an application's access to system files and settings

East-Tec Eraser 2007 protects your privacy, identity and confidential information and removes all evidence of your computer and online activity.privacy security

Email encryption software

The Bastille Hardening program "locks down" an operating system, proactively configuring the system for increased security and decreasing its susceptibility to compromise. Bastille can also assess a system's current state of hardening, granularly reporting on each of the security settings with which it works.

Quite simply, this makes securing a Linux box a simple, educational process. And it's free!