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About Us

The Insider Threat Defense Group was founded in 2009 by Mr. Jim Henderson (CEO Bio) (ITDG Overview). Our offices are located in Silver Spring, Maryland and West Palm Beach, Florida. We are a U.S. based company and provide our services worldwide.

The Insider Threat Defense Group is recognized as the Go To Company for Insider Threat Program Development / Management Training and Insider Threat Mitigation Services. We have provided our training and services (in over 14 U.S. states) to an impressive list of 550+ clients: U.S. Government Agencies (Department of Defense, Intelligence Community), Defense Contractors, Defense Security Service, Critical Infrastructure Providers, Fortune 500 Companies, Aviation / Airline Industry, Spacecraft Manufacturing — Launch Providers, Technology Companies, Banking — Financial Industry, Health Care Industry, and other large-small businesses and global corporations.

Client Listing

Over 700+ individuals have attended our training and received Insider Threat Program Manager Certificates.

The foundations of our training and the comprehensive nature come from our experience. We were the first company to offer comprehensive training to the U.S. Government and Cleared Defense Contractors, who were required to implement Insider Threat Programs, based of off National Insider Threat Policy, and NISPOM Conforming Change 2 regulations.

The Insider Threat Defense Group provides training that greatly surpasses traditional training for Insider Threat Program Development / Management. Our training content is very comprehensive and resourceful. Our student and client satisfactions levels are in the exceptional range. We provide our clients with the Gold Standard for successful Insider Threat Mitigation.

Student / Client Satisfaction & Comments

The Insider Threat Defense Group offers the largest selection of training courses for Insider Threat Mitigation. Our instructors are recognized as experts in the field of Insider Threat Mitigation and provide more then just training. They have hands-on experience helping government agencies and businesses with all aspects of Insider Threat Program Management. Our instructors also specialize in areas that are of the greatest concerns to an Insider Threat Program: Legal Aspects and Behavioral Science.

Mr. Henderson has over 15 years of experience protecting classified information up to the Top Secret SCI Level. He has been responsible for the development, implementation and management of: Insider Threat Programs, Cyber Security-Information Systems Security Programs, Information Assurance Programs, for U.S. Government, DoD, IC Agencies, Cleared Defense Contractors, State Governments, large and small businesses.

Mr. Henderson has held numerous high level security positions working for the following government agencies: U.S. Special Operations Command, Central Intelligence Agency, Defense Intelligence Agency, DoD Insider Threat Counterintelligence Group, Defense Security Services, Department of Energy and Health and Human Services.

Mr. Thompson of the Insider Threat Management Group / Insider Threat Training Academy, is a Licensed Attorney, Member of the Maryland Bar Association, former Federal Prosecutor, Special Agent, and Insider Threat Program Manager. He has over 15 years of experience investigating, prosecuting, and mitigating Insider Threat risks.

Mr. Thompson has been involved in developing, implementing and managing Insider Threat Programs for numerous U.S. Government Agencies and private sector companies.

His work with the National Insider Threat Task Force led to the creation of the National Insider Threat Policy and Minimum Standards for Executive Agencies. Mr. Thompson serves as the Legal Advisor to the National Insider Threat Special Interest Group.


Dr. Gallagher of the Guardian Defense Group, has extensive experience training and consulting about the human side of Insider Threat, Violence and Espionage. As a Clinical / Operational Psychologist, former military Intelligence Officer, and Former Federal Special Agent, he has had the opportunity to study and apply his knowledge of human dynamics in a wide array of contexts.


Dr. Gallagher supports a contract with the DoD Insider Threat Management and Analysis Center (DITMAC) as the Senior Behavioral Science Advisor. In this role he consults on the most concerning and high profile Insider Threat cases for civilian, military and contract personnel across all 44 of the Department of Defense component organizations. Dr. Gallagher serves as the Scientific Director to National Insider Threat Special Interest Group.

Insider Threat Defense Group training and services goes beyond traditional compliance regulations: National Insider Threat Policy, NISPOM Conforming Change 2, Federal Information Security Management Act (FISMA), National Institute of Standards & Technology (NIST), Health Insurance Portability & Accountability Act (HIPAA), Payment Card Industry Data Security Standard (PCI-DSS), Gramm–Leach–Bliley Act (GLBA), Financial Industry Regulatory Authority (FINRA), etc.). These compliance regulations are very weak in the area of Insider Threat Mitigation.

A robust and effective Insider Threat Program is built on top of a solid foundation of security. Our training and services incorporate these foundations from other training courses that we have developed and taught. In 2009, NSA awarded the Insider Threat Defense Group a contract for an Information Systems Security Program / Insider Threat Mitigation Training Course. This course was taught to 100 NSA Security Professionals (ISSM / ISSO), the DoD, Navy, National Nuclear Security Administration, Department of Energy National Labs, and to many other organizations.

The CEO of the Insider Threat Defense Group is the Founder / Chairman of the National Insider Threat Special Interest Group (NITSIG). The NITSIG is a unique and specialized Information Sharing and Analysis Center, focused primarily on Insider Threat Mitigation. The NITSIG Membership is the largest network (1000+) of Insider Threat Mitigation Professionals in the U.S. The willingness of NITSIG Members to collaborate and share information among the membership has been the driving force that has made the NITSIG very successful. We incorporate this vast amount of Insider Threat Intelligence into all of our training and services.

The Insider Threat Defense Group has won numerous awards from the: FBI InfraGard Program, Maryland InfraGard, American Society For Industrial Security, and the Federal Information Systems Security Educators’ Association, and has been recognized for various contributions in the many aspects of the security field.

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