Showing software for all platforms
The KeePass password manager helps you manage your passwords in a secure way. You can put all your passwords in one database, which is locked with one master key or a key file, so you have to remember only the master password or select the key file to unlock the whole database. Databases are encrypted using the most secure encryption algorithms currently known (AES and Twofish).
From OpenVas.org - OpenVAS stands for Open Vulnerability Assessment System and is a network security scanner with associated tools like a graphical user front-end. The core component is a server with a set of network vulnerability tests (NVTs) to detect security problems in remote systems and applications. Original branched from the formerly open source Nessus project, much of the code has now been rewritten. With thousands of vulnerabilities in the plugin feeds this is a comprehensive and powerful security assessment tool.
TrueCrypt provides transparent real-time on-the-fly encryption. It can create a virtual encrypted disk within a file, or a device-hosted encrypted volume on either an individual partition or an entire storage device. It runs on Microsoft Windows, Mac OS X, and Linux, and encrypted volumes can be made portable across operating systems. The version for Windows can encrypt the boot partition or entire boot drive, and has the ability to create and run a hidden encrypted operating system whose existence is deniable.
Magic Mail Monitor (MMM) is a free POP3 mail monitor that supports multiple accounts. It sits silently in your system tray and notifies you about new messages in your mailboxes. You can preview messages and delete unwanted mail in order to avoid spam and viruses. MMM offers configurable filters, a friends list, partial loading, and other easy-to-use tools.
GNUnet is a framework for secure peer-to-peer networking that does not use any centralized or otherwise trusted services. A first service implemented on top of the networking layer allows anonymous censorship-resistant file sharing. Anonymity is provided by making messages originating from a peer indistinguishable from messages that the peer is routing. All peers act as routers and use link-encrypted connections with stable bandwidth utilization to communicate with each other. GNUnet uses a simple, excess-based economic model to allocate resources. Peers in GNUnet monitor each others behavior with respect to resource usage; peers that contribute to the network are rewarded with better service.
Fugu allows you to copy files between computers securely via a GUI interface. It's a graphical front end to Secure FTP (SFTP), and also includes support for SCP file transfers, and the ability to create secure tunnels via SSH.
A simple program written in python. It is primarily designed for backup purposes, but can be used as a stealth keylogger, too. It does not raise any trust issues, since it is a set of [relatively] short python scripts that you can easily examine.
Tux Paint is a free drawing program for children ages 3 to 12. It combines an easy-to-use interface, fun sound effects, and an encouraging cartoon mascot who guides children as they use the program. Kids are presented with a blank canvas and a variety of drawing tools to help them be creative.
ClamWin Free Antivirus comes with an easy installer and features:
Random Front End is a Java front end that facilitates the use of batteries of statistical tests. The front-ended batteries are: ENT Battery, DIEHARD Battery, and NIST Battery.