Windows Security Guide
- Technical information and resources to secure Windows systems and networks.
- http://www.pctools.com/guides/security/

Microsoft Security Bulletin Search
- A searchable bulletin providing NT security updates from Microsoft.
- http://www.microsoft.com/technet/security/

Microsoft Security
- Technical and how-to information about security for IT professionals, developers and those new to security.
- http://www.microsoft.com/security/

Windows NT Network Security - A Manager's Guide
- A thirty-one page PDF document maintained at Lawrence Livermore National Laboratory.
- http://ciac.llnl.gov/ciac/documents/CIAC-2317_Windows_NT_Managers_Guide.pdf

Trusted Systems Services
- A secure systems consulting, service, and training company specializing in Windows NT security. Provides NT security products and publications.
- http://www.trustedsystems.com/

STAT: Security Threat Avoidance Technology
- Security test and analysis tool. A vulnerability assessment tool for Windows NT.
- http://www.statonline.com/

Small Wonders Software
- Develops products for managing and reporting NTFS permissions on Microsoft based servers.
- http://www.smallwonders.com/

Shavlik Technologies
- A company providing Microsoft based security solutions to fortune 500 and medium sized businesses.
- http://www.shavlik.com/

SecureWave
- A company developing security software for Microsoft Windows network environments.
- http://www.securewave.com/

Ports Used by Trojans
- A table showing examples of existing trojans and ports in current use.
- http://www.simovits.com/nyheter9902.html

Pedestal Software
- Provides security policy management and auditing for NT.
- http://www.pedestalsoftware.com

An Overview of Windows NT Security
- A programmer's introduction to the Windows NT security system from a conceptual and interface point of view.
- http://world.std.com/~jimf/papers/nt-security/nt-security.html

NTSecurity.com
- One stop portal for NT security related information and products.
- http://www.ntsecurity.com

NT Security - Frequently Asked Questions version 0.41
- A FAQ maintained at the Swedish Royal Institute of Technology that discusses security related issues and problems with Windows NT.
- http://www.it.kth.se/~rom/ntsec.html

Microsoft 128-bit PPTP upgrade hints
- Provides information on making a PPTP VPN RAS connection more secure.
- http://www.knowplace.org/pptp-hints.html

Abtrusion Security
- Provides security software for Windows NT to prevents the loading of software that has not been safely installed on the computer.
- http://www.abtrusion.com/