e-fense, Inc. 
Provides full-life cycle network security support integrating security prevention and maintenance services with investigative and legal expertise.
http://www.e-fense.com/Cypherpunks Tonga 
A center for research and development of cypherpunk projects such as smartcards, onion routing, pgp, secure network tunnels, and anonymous services. Requires Secure Socket Layer capable browser.
http://www.cypherpunks.to/
Gibson Research Corporation 
Internet security resource featuring Shields Up - tests PC's ports for resistance against hacking and a CIH virus recovery tool.
http://www.grc.com/
Roe's Downloads 
Freeware tools including Liberator (BO countermeasure), TCP/IP Connector, CAST-256 plugin for BO2K
http://www.roe.ch/
TruGeek 
Online web based tools, software, and mailing lists.
http://trugeek.com/Tools/
Sanctum, Inc. 
Solutions for securing web applications.
http://www.sanctuminc.com/
Tools-On.net 
Free Network security and auditing tools from Alexander K. Yezhov, also security articles and archives.
http://tools-on.net
Ben's Online Web Utilities 
Useful web interface for other network utilities, net traffic, and exploit search engine.
http://www.phaster.com/find_info_net_traffic.html
Cenzic, Inc. 
Hailstorm Enterprise Solution has two product lines for Security Quality Assurance: Hailstorm Web and Hailstorm Protocol Modeler. Overview of products, services, and companies profile.
http://www.cenzic.com/
Free Windows Firewall Downloads 
Attempts to list all free firewall software downloads on the Internet for the Windows Operating system.
http://www.iopus.com/guides/freefirewalls.htm
Yozons 
Improves business processes with e-signatures and security.
http://www.yozons.com/pub/
iTools 
Collection of useful Internet tools
http://www.itools.com/internet/
Solo Antivirus software 
Provides detection and removal tools. Also includes a powerful system integrity checker to block new Internet worms and backdoors.
http://www.antivirus-download.com/
Tashilon Secure4Net 
Implements the new AES encryption algorithm.
http://www.image-in.co.il/HTML/SEC4NET/
Create Accounts 
Free tool to create password protected web-site areas.
http://www.createaccounts.com/
Protecteer LLC 
Desktop software combined with a web based service for managing website registration processes securely. Includes password and email address generation and management, automatic form filling and email screening. [Windows]
http://www.protecteer.com/
Tray Safe 
Password manager for web passwords - automatic insertion of usernames and passwords into web forms [Win95/98/Me/NT/2000/XP].
http://www.fgroupsoft.com/Traysafe/
Magneto Software 
Security software and development tools.
http://www.magnetosoft.com
Beepcard Inc. 
Wireless authentication and verification systems for security and mass-market applications. Developed Comdot, a self-powered electronic card that performs wireless authentication without using a card reader.
http://www.beepcard.com/
ShareFix 
Utility to remove Windows default administration shares which pose a potential security problem.
http://www.kue.dsl.pipex.com/sharefix.htm
Program Lock Pro 
Lock and unlock any program on a PC so it cannot be used. Runs on all Windows systems.
http://www.softdd.com/program-pc-lock-protect/index.htm
Krickitware Inc. 
Provides the Krickit encryption key to secure confidential information and provide 2-factor authentication.
http://krickit.com
Genuine Document 
Online notarization service that allows user to digitally sign and timestamp web documents such as press releases, reports, and terms.
http://www.genuinedoc.com/
1st Internet Privacy Tool 
Utility that restricts access to Windows resources.
http://www.privacywindows.com/iptool/index.html
SPAM Blackout 
Blocks spam from your inbox. Safe and easy-to-use, has a powerful spam filtering Engine. Works with any email client program, such as MS Outlook. Can interface with your anti-virus Scanner. Works with Hotmail, POP3, and IMAP.
http://www.spamblackout.com
Ad Zapper Popup Blocker 
User friendly Popup Killer. Easily configured to allow popups from specific sites.
http://www.adzapper.net
Firewall Test 
Online and downloadable tools that test for security vulnerabilities by scanning ports, checking browser security, and looking for spyware. Firewall and popup blocker downloads also available.
http://auditmypc.com
Comodogroup 
Offers a range of internet security products, including SSL certificates, firewall, web servers, antivirus, and anti-spam.
http://www.comodogroup.com
Altiris 
Integrated IT lifecycle management. Specializing in XP migration, patch management, backup and recovery, asset management, lifecycle management, imaging, software inventory, hardware inventory, software delivery, server deployment, systems management, and software license management.
http://www.altiris.com
Senforce Technologies, Inc. 
Manufacturer of software to assist Enterprise IT managers in policy enforced client security and wireless mobile security.
http://www.senforce.com
Oracle Phaos Products 
Tools for enabling identity management security and standards-based cryptographic protocols.
http://www.oracle.com/technology/products/id_mgmt/phaos/
StopITnow Modem Protection Software 
Software to protect and control of unauthorized access to your dial-up modem Internet connections.
http://www.stopitnow.com.au
YouEncrypt.com 
Web Page Encryption is a tool to protect the content of your web page. It can protect your text, graphics or prevent others from copying your code or paypal links. With its help, spammers are stopped from extracting your email address from your web page so they can't send you spam emails.
http://youencrypt.com
Online Security Guide 
Find tools, software and articles to increase your online computer security.
http://www.onlinesecurity-guide.com/
Physq Hotlink Reverser 
Physq offers scripts for webmasters. Hotlink Reverser is an advanced script that will protect your content against hotlinking.
http://www.physq.com
Skygate 
Skygate specialises in IT security providing products, consultancy and software/application development to organisations. These include a two-factor authentication solution, BS7799 based security consultancy and audits, and Linux consultancy and development.
http://www.skygate.co.uk
UBN - Universal Business Network Inc. 
No 1 e catalogue exchnage center, Trading information exchange center, Global Security Information Key implement.
http://www.ubn.net
Argus 
A system and network monitoring application which provides a facility for monitoring nearly all aspects of an Internet connected network.
http://argus.tcp4me.com
MereSurfer 
Stops pop-ups, erases tracks of Internet activity while web surfing and protects PC from DoS attacks.
http://www.meresoft.com/products/meresurfer/
NetWolves 
Makes Internet gateway solutions for LAN-to-Internet connectivity. The FoxBox is an e-business platform for distance learning, data-security, VPN networks.
http://www.netwolves.com/
Tiger Tools, Inc. 
Tools for a professional security analysis.
http://www.tigertools.net/
wINJECT 
Low-level packet builder/injector for win9x dialup users. It allows you to create custom packets with real or spoofed IP addresses.
http://home19.inet.tele.dk/moofz/
DeepFreeze 
Software which can help keep a stable system and prevent against viruses.
http://www.faronics.com/html/deepfreeze.asp
Breach Security, Inc. 
Provider of web application network security software, Breach Security products protect enterprise applications with an intrusion detection system (IDS). The Breach Adaption network security product is an automated and adaptive intrusion prevention system for SSL and security compliance.
http://www.breach.com/
Pop Up Blocker test 
Checks a PC for popups that may slip by the browser. Instructions on fixing discovered problems are provided.
http://www.auditmypc.com/freescan/popup-blocking.asp