Tumbleweed Communications Sitting between your enterprise systems and applications and your corporate firewall, Tumbleweed Secure Guardian provides an additional layer of content-focused security, including content filtering, virus and spam blocking and email encryption. http://www.tumbleweed.com
webScurity Security Behind the Firewall webApp.secure is software that automatically strengthens and dramatically simplifies Web server hardening. Providing absolute assurance through proactive prevention, webApp.secure increases control, while at the same time, reduces costs. http://www.webscurity.com
WinBackup Easy to use backup software that keeps your backup secure using 256-bit encryption. http://www.liutilities.com/products/winbackup/
WinGate This piece of software allows multiple people in an office to share a dialup line and has some rudimentary firewall capability. http://www.wingate.com
X Watch Window If you have access permission to a host's X server, XWatchWin will connect via a network socket and display the window on your X server. http://firewall.com/software/xwatchwin.tar.gz
xcrowbar.c Source code demonstrates how to get a pointer to an X Display Screen, allowing access to a display even after "xhost -" has disabled acess. Note that access must be present to read the pointer in the first place! (Originally posted to USENET's comp.unix.security.) http://firewall.com/software/xcrowbar.c
Xintegrity Professional Xintegrity Professional detects all changes to Windows systems, whether malicious, accidental or during new software installation.
Xintegrity Professional detects all changes to the directory structure, changes to the registry, changes to files security access permissions, and changes to the contents of files. http://www.xintegrity.com
xkey.c Attach to any X server you have perms to and watch the user's keyboard. http://firewall.com/software/xkey.c
ypsnarf.c Exercise security holes in YP / NIS. http://firewall.com/software/ypsnarf.c
YPX YP/NIS is a horrible example of "security through obscurity." YPX attempts to guess NIS domain names, which is all that's needed to extract passwd maps from the NIS server. If you already know the domain name, ypx will extract the maps directly, without configuring a host to live in the target NIS domain. (GZip'd Bourne Shell Archive) http://firewall.com/software/ypx.sh.gz