Harden-It - Harden your Windows Installation (Sny flood, Syn attack..) is a Network and System hardening tool for Windows, by hardening the IP stack your Network can sustain or completely thwart various sophisticated network attacks, by Hardening the System your PC is immune against various mal ware and spy ware attacks. Harden-It is intended for advanced or professional use.

Prevx Home - The worlds first Host Intrusion Prevention System for the home user. Prevx Home will protect your PC against the worms, trojans, malicious spyware, malware and hacker attacks that bypass traditional security technology.

HackerWatch.org a community and collection point for Internet users to report and share information to block and catch 'hackers' and other unwanted traffic. We have entered an age of the Internet where the biggest threat to our safety, and the very viability of the network, is that of automated attacks and 'worms'.

Quark v1.0.0 - Classic Software® is a powerful security tool which will help you protect your computer from unauthorized access by taking over your system and denying any user interaction until the correct password has been provided.

An interview on hacking and denial of service attacks with Brian Martin and David Dittrich The recent denial of service attacks on several major Web sites are being termed a "wake-up call" for Internet security. But many experts have been ringing the alarm for months, trying to convince Netizens of the dangers that a few poorly secured systems can present to the network as a whole. 

Denial of Service (DoS) Attacks 

Distributed Denial of Service (DDoS) Attacks-tools 

Michael's Home Turf - Windows 95-NT NUKE-OOB-TEARDROP & ICMP-SSPING Fixes!!! If you are running Windows 95 (including OSR2) or Windows NT and are being hit by the "NUKE/OOB/TEARDROP" attacks OR the more recent ICMP/SSPING attacks, Microsoft has made patches available to prevent such attacks and I have them available here along with brief descriptions of what each type of attack can do to you and it's not pretty!! Windows 98 users do NOT need to get the patch. 

National Infrastructure Protection Center (NIPC) - Warnings - 2001 Advisories - 01-012

 The NIPC has received reliable information indicating ongoing attempts to disrupt web access to several sites. The activity has been seen from several networks, and consists entirely of fragmented large UDP packets directed at port 80

Shields UP! -- Internet Connection Security Analysis Shields UP! quickly checks the SECURITY of
YOUR computer's connection to the Internet. 

WinNuke Test Page This page allows you to test your PC for vulnerability to the "WinNuke" attack. This attack is a Denial of Service (DOS) attack that completely disables networking on many Win95 and WinNT machines. The attack is swift and deadly.

HACKER WHACKER Remote Computer Network Security Scan See your computer the way hackers do.

NetArmor Download FREE What Does It Do? Sentinel will help you pinpoint and terminate viruses or trojans. It features an advanced Integrity Checker that will go through every system file and make sure it hasn't been touched. Also included is a Registry Watcher, and an Application Watcher!

IP Scanner This scanner will check for open ports, vulnerable and accessable hosts with open netbios shares. An open "netbios" share uses in Windows systems could allow a hacker to connect right to your hard disk drive and access your personal information whenever you are online. Use our scanner to close those holes hackers use via Trojan Horses and other viruses. Protect yourself now! For Windows 95,98,ME,NT and 2000.

NetMonitor displays and logs TCP/IP connections to your machine. Intended for systems administrators, network application developers and security conscious home users, NetMonitor keeps you informed.

Features include port scan detection, email notification, flexible logging filters, and customizable display settings.

NTLast30 Security log analyzer. Identify and track who has gained access to your system, then document the details---Enhanced audit/tracking features, such as reading saved files. Includes raw time output for Excel analysis and many more additional features for Webmasters.