Security Testing Tools

The Ultimate List of Tools to Test Website and PC Vulnerability
Tests You Can Run Right Now From Your Browser
Shields Up! - A neat free online tool to test Windows File Sharing, any Ports vulnerabilities, browser header info, and messenger spam with the click of a button right online. Check it out.
Browser Security Tester - This site will 'test crash' your browser for you. It runs 7 tests on your browser. If your browser "crashes" (i.e. closes) return to the page and see your results. Follow the instructions.
Tests and Scanning Programs You can Download
SEC Tools: 100 Network Security Tools 100 Favorite tools listed by the nmap-hackers mailing list.
28 Top Security Tools and security tool sites. (See the Website Security Tools Section) This is one category among 11 others containing website testing tools for a total of 390 tools. From the Software QA / Test Resource Center.
13 Open Source Security Testing Tools Tools for both software and web testing. (Primarily for scanning software vulnerabilities)
50+ Free Security Testing Tools from FoundStone (a division of McAfee)
10 Best Free Security Tools - From ITSecurity.com (These are more common PC user security tools. Not so much web admin or net admin tools)
13 Effective Free/Open Source Security Tools - See what you look like from the internets perspective. These are recommended by Kevin Beaver (a CISSP writing for one of TechTargets programs).
Google's Ratproxy now Opensource - Ratproxy is a semi-automated, largely passive web application security audit tool. It is meant to complement active crawlers and manual proxies more commonly used for this task, and is optimized specifically for an accurate and sensitive detection, and automatic annotation, of potential problems and security-relevant design patterns based on the observation of existing, user-initiated traffic in complex web 2.0 environments. The approach taken with ratproxy offers several important advantages over more traditional methods:
Firewall Leak Tester - Website has a very unique and free downloadable package of 26 tests that simulate virus and firewall intrusion scenarios. (Site has other tools on it as well)
Professional Scaning Services You Can Subscribe To
Censzic Hailstorm - (Click logo for free evaluation page) Cenzic Web application security solutions provide customers the most accurate results possible in an automated and cost-effective way that quickly and intelligently assesses application security risks across the enterprise. Until now, this level of accuracy and speed could not be obtained, even through methodical, manual assessment by security consultants. Cenzic can automatically find the most “real” threats fast – across any enterprise application – legacy or new. Cenzic - the premier web applications security testing provider.
GamaSec - Scans your website for security vulnerability. Reasonable monthly fee. Free trial scan available!
Qualys - One of the prmier security scanning services used by major companies today (i.e. Webex, Cigna). Get a 14 day free evaluation scan from them.
Beyond Security Beyond Security serves many larger companies and specializes in developing tools that uncover security holes in servers, expose vulnerabilities in the corporate network, check computer systems for the possibility of hostile external attacks and audit vendor products for security holes.
Audit My PC You'll find a ton of free online tools at Audit My PC. Home internet users will enjoy our security audits, speed tests and free software while webmasters will love our website utilities, such as our link checker, sitemap creator and our website monitoring services. There is something for everyone! (Also has links to free software)
Other Notable Security Resources
The Open Web Application Security Project (OWASP) Open Source web security tools and information.
Purdue University's - CERIAS Security Archive - Purdue University's 'Center for Education and Research in Information Assurance and Security' site; 'hotlist' section includes extensive collection of links, organized by subject, to hundreds of security information resources and tools, intrusion detection resources, electronic law, publications, etc. Also includes an FTP site with a large collection of (mostly older) security-related utilities, scanners, intrusion detection tools, etc.

More to Come...(Please email us suggestions)