Security for .NET
Implement managed role-based security for .NET Framework. The Security for .NET enables you to manage Windows security.
http://www.blackbytes-components.com/product.aspx?id=1&mt=1

Freeform Framework
A web application framework aimed at creating scalable web apllications. Support MVC (Model-View-Controller)architecture, standartized forms processing, class and resource packaging, sessions and security.
http://dev6.php5.nedlinux.com/?action=ViewProject&project=39

Alexey Dynnikov's Delphi pages
PerfUtils is a set of Delphi components that encapsulates Windows NT Performance API. SvCom is a set of components, classes and wizards that implement Services framework and NT Security framework.
http://www.aldyn.ru/

Litronic, Inc.
Provides security middleware, software developer toolkits, DMS, CAC and HSPD-12 support.
http://www.litronic.com/

Metasploit Project
The Metasploit Project is an open source computer security project which provides information about security vulnerabilities and aids in penetration testing and IDS signature development. Its most well-known sub-project is the Metasploit Framework, a tool for developing and executing exploit code against a remote target machine. Other important sub-projects include the Opcode Database, shellcode archive, and security research.
http://metasploit.org

SNMPv3: A Security Enhancement for SNMP
This article outlines the overall network management framework defined in SNMPv3, and then looks at the principal security facilities defined in SNMPv3: authentication, privacy, and access control.
http://www.comsoc.org/livepubs/surveys/public/4q98issue/stallings.html

RFC 1457
Security Label Framework for the Internet. R. Housley. May 1993.
http://tools.ietf.org/html/rfc1457

Activeworx, Inc.
Manufacturer of Activeworx Security Center, a feature-rich security event management solution to handle enterprise network events. A centralized and distributed framework facilitates event management, event correlation, reporting and detailed forensic analysis.
http://www.activeworx.com

Akelos Framework
Port of Ruby on Rails development framework and designed to work for PHP4 and PHP5. The purpose of the framework is to support developers in building and managing multilingual database-backed web applications using the Model-View-Control pattern [Open Source, GLPL].
http://www.akelos.org

Zoop Framework
A Object Oriented Framework for PHP, Zoop Framework caters to the programmer and includes ajax and validation. Zoop also features a PHP implementation of .NET controls called GUIControls [Zope Public License, GPL compatible].
http://zoopframework.com