James Stanger, PhD has consulted with corporations, governments and learning institutions worldwide about IT security, open source, and network administration for over 20 years. He is a respected authority in security, networking, and open source. His area of expertise include security analytics, penetration testing, Linux and open source, network administration and monitoring, blockchain, and end point host support. He has provided consulting concerning the business of risk management, as well as network architecting. He has also created education programs and curricula worldwide. He has published dozens of articles, books, and blogs. His books have been translated into over a dozen languages.