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Mark B. Cooper, Founder of PKI Solutions Inc., is a former Microsoft Senior Engineer and subject matter expert for Microsoft Active Directory Certificate Services (ADCS). He is also the author of several Microsoft whitepapers, including the specifications and deployment of ADCS on Microsoft Windows Failover Clusters.

Known as “The PKI Guy” at Microsoft for 10 years, he traveled around the world supporting PKI environments for Microsoft’s largest customers. He focused on supporting security solutions for Fortune 500 companies and acted as their Trusted Advisor in all things related to PKI.


While at Microsoft he was the creator and Program Manager for the Microsoft PKI Health Check which analyzed and reported on the design and management of PKI components. He also created and compiled Microsoft’s first consolidated set of PKI best practices across the organization.

Mark has been working with Microsoft technologies since 1992 when he achieved his first MCP certification with Microsoft exam #001. He has subsequently earned the MCSE accreditation for every Microsoft operating system since Windows NT 3.51, and is a Microsoft Certified Trainer (MCT), Microsoft Security MVP, and Charter Microsoft Certified Master – Directory Services (MCM). In fact, if you have the Microsoft MCM-Directory accreditation, Mark developed and most likely delivered the PKI portion of your training.

Mark has authored several training and assessment programs at Microsoft around PKI related technologies. Additionally, he has also authored and co-authored several books starting with Windows NT 4.0. Mark was also a regular contributing writer to several IT magazines during the late 1990s and early 2000s.

You can reach Mark at info@pkisolutions.com, or follow him on Twitter at https://twitter.com/thepkiguy.


Securing and Hardening Network Device Enrollment Service for Microsoft Intune and System Center Configuration Manager (Microsoft)

Upgrading and Improving the Trust of Microsoft Windows Certificate Authorities Whitepaper (Thales e-Security)

Securing Public Key Infrastructure (PKI) Whitepaper (Microsoft)

   Contributor/Tech Reviewer

Windows Server 2008 Administrators Companion

Author of Clustering Chapter

Server 2008 Failover Clustering for Certificate Services Whitepaper (Microsoft)

MCSE Windows 98 Study Guide

MCSE Ace It! – NT Workstation 4.0

MCSE Ace It! – NT Server 4.0

MCSE Ace It! – NT Server 4.0 In The Enterprise

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