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 Links to PGP, remailers, rants, various crypto-tools, newspaper clippings, and some other things. http://www.csua.berkeley.edu/cypherpunks/Home.html

Network Security Technology Co. The NST product family includes complete PKI system operations, security applications and hardware cryptographic devices to secure business conduct over computer networks, whether for Internet, extranet or intranet applications. http://www.nst.com.tw

Enhancing E-Mail Security With Procmail Discusses email-based attacks and ways to use the procmail toolkit to filter them out. ftp://ftp.rubyriver.com/pub/jhardin/antispam/procmail-security.html

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/

Clearswift Limited MIMEsweeper for protecting networks from threats via email and the web. http://www.contenttechnologies.com/

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/

Proginet Enterprise-wide password synchronization, management and single sign-on. Secure, reliable, cost-effective file transfers of mission-critical data over your network and/or the Internet http://www.proginet.com

LockDown 2000 Privacy and security software for Windows platforms, available to download. http://www.vastcity.com/lockdown2000/

Hackbusters Distributes the Linux tool LaBrea, a tarpit for worms that use IP scanning for spreading. http://www.hackbusters.net/

LaBrea Application that puts unused IP addresses on a network to use, creating a "tarpit" which can stop or slow down scans of network address space. http://www.hackbusters.net/LaBrea/

TruGeek Online web based tools, software, and mailing lists. http://trugeek.com/Tools/

Sanctum, Inc. Solutions for securing web applications. http://www.sanctuminc.com/

Web Server Automatic Website Test Macros Automatically run link, form and download usability tests on web sites with this online macro recorder and form filler. Features extensive command line and batch file support. http://www.InternetMacros.com

Tools-On.net Free Network security and auditing tools from Alexander K. Yezhov, also security articles and archives. http://tools-on.net

Netlock Technologies Inc. IPSec based network security software. http://www.netlock.com/

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

CipherLink Offers outsourced security solution, security assessments and consulting services, training and education, and a free web based service to transfer documents and send electronic messages securely over the web. http://www.cipherlink.com/

Internet Guard Changes hidden settings in Windows registry in order to protect TCP/IP stack. This utility protects both server and desktop computers. http://www.softforces.com/iguard.htm