Jesper M. Christensen, MCSE, MCTS, CCNA and CCA, has over ten years experience of planning, implementation and support for medium sized companies in multiple countries. His main areas of expertise are network infrastructure based on the Microsoft platform which he combines with wide and deep knowledge of network architecture, application development and server based computing.

Jesper is a co-founder of extri:co a/s, a Microsoft Gold Partner in Denmark, where he works as a professional IT consultant. He enjoys using his knowledge in many areas of Information Technology to give the best solutions and service to customers. You can read his posts on the Danish Microsoft forum www.IT-Experts.dk or you can check out his blog. Feel free to contact him at blue@jinx.dk.

Chris Sanders is a technology consultant, author, and trainer born near Paducah, Kentucky. Chris serves as a network security analyst for EWA Government Systems, Inc and is the author of the book "Practical Packet Analysis", as well as contributing many articles in the field. You can read more about Chris on his personal blog located at http://www.chrissanders.org

Derek Melber, MCSE, MVP, is an independent consultant, speaker, author, and trainer. Derek’s latest book, The Group Policy Resource Kit by Microsoft Press, is his latest best-selling book covering all of the new Group Policy features and settings in Windows Server 2008 and Vista. Derek educates and evangelizes Microsoft technology, focusing on Active Directory, Group Policy, Security, and desktop management. Derek speaks and trains for MISTI, TechMentor, Windows Connections, and TechEd. You can bring Derek to your office for training or consulting, just email him at derekm@braincore.net.

Don Parker specializes in matters of intrusion detection, and incident handling. He has also enjoyed a role as guest speaker at various network security conferences, and writing for various online and print media on matters of computer security. You can contact Don Parker at dparker@bridonsecurity.com

Jakob H. Heidelberg is an MVP: Enterprise Security, MCSA/MCSE: Security/Messaging, MCDST, MCTS, MCITP, MCT, CCNA, and a Certified Ethical Hacker, that works as a System Consultant for Interprise Consulting A/S, a Microsoft Gold Partner based in Denmark. Jakob is engaged as a writer at the largest Microsoft online community for Danish IT pros, it-experts.dk. He also writes on his own blog, and likes to catch up on as much new stuff as possible within the Microsoft world, but currently specializes in messaging, monitoring and security issues.

Martin Kiaer is a Microsoft MVP in Windows Security and works as a Principal Consultant for LogicaCMG, a Microsoft Gold Partner in Security and Enterprise solutions. Martin has worked in IT for over 16 years, specializing in IT security since 1994. In his spare time he works as a freelance journalist and is the founder of IT-experts.dk, the largest Microsoft online community for Danish IT pros.

Ricky M Magalhaes is an International Information Security business specialist, author and consultant, working with a myriad of high profile organizations. He has been consulting in the information security field for over ten years and continues to promote information security best practice, strategic and compliance to many top international entities. He has trained the government agencies and other governmental entities on various information security disciplines and has often spoken at national and international conferences on behalf of Microsoft.

Dr. Thomas W. Shinder is an MCSE and MVP in ISA Firewalls. He has worked as a technology trainer, writer and consultant in the Dallas-Ft. Worth metro area for over a decade, assisting in development and implementation of security strategies for major firms such as Micorosoft, HP, the US Federal Government, and many other Fortune 500 companies. Tom is the CIO of TACTEAM, a writing, training and consulting firm focused on Windows security planning and deployment.

Brien Posey is an award winning author who has written over 3,000 articles and written or contributed to 27 books. You can visit Brien’s personal Web site at www.brienposey.com

DEBRA LITTLEJOHN SHINDER, MCSE, MVP (Security) is a technology consultant, trainer and writer who has authored a number of books on computer operating systems, networking, and security. She is also a tech editor, developmental editor and contributor to over 20 additional books. Her articles are regularly published on TechRepublic’s TechProGuild Web site and Windowsecurity.com, and have appeared in print magazines such as Windows IT Pro (formerly Windows & .NET) Magazine. She has authored training material, corporate whitepapers, marketing material, and product documentation for Microsoft Corporation, Hewlett-Packard, DigitalThink, GFI Software, Sunbelt Software, CNET and other technology companies. Deb lives and works in the Dallas-Ft Worth area and can be contacted at deb@shinder.net or via the website at www.shinder.net

Justin Troutman is an independent contract cryptographer and cryptanalyst, based in North Carolina, who sports a forte consisting of a specialization in the structural design semantics of cryptographic primitives and their mathematical cryptanalyses, on which he has authored publications and lectured abroad. On a contract basis, his array of engagements include consulting, conceptualizing, constructing, and cryptanalyzing tactful cryptographic protocols and their respective algorithmic components. On an academic basis, he is pursuing doctorate-level research in the pure mathematical corpus of cryptology.

More information, including his concise curriculum vitae, is located at his autobiographical site, http://www.justintroutman.org.

Mitch Tulloch is a writer, trainer and consultant specializing in Windows server operating systems, IIS administration, network troubleshooting, and security. He is the author of 15 books including the Microsoft Encyclopedia of Networking (Microsoft Press), the Microsoft Encyclopedia of Security (Microsoft Press), Windows Server Hacks (O'Reilly), Windows Server 2003 in a Nutshell (O'Reilly), Windows 2000 Administration in a Nutshell (O'Reilly), and IIS 6 Administration (Osborne/McGraw-Hill). Mitch is based in Winnipeg, Canada, and you can find more information about his books at his website www.mtit.com

Robert J. Shimonski (MCSE, etc) is an entrepreneur, technology consultant and published author. Robert's specialties include network infrastructure design, management and the troubleshooting of Microsoft and Cisco products. Robert has in depth experience with globally deployed Microsoft and Cisco systems. Robert works with new companies constantly to help them forge their designs, as well as to optimize their networks and keep them highly available, secure and disaster free. Robert is author of many security related articles and published books to include the best selling: "Sniffer Network Optimization and Troubleshooting Handbook" from Syngress Media Inc (ISBN: 1931836574). Robert is also the author of the best selling: Security+ Study Guide and DVD Training System (ISBN: 1931836728) and Building DMZs for Enterprise Networks (ISBN: 1931836884) also from Syngress. Robert can be found online at www.rsnetworks.net