Jon Hagar is a senior tester with 40 years’ experience in software development and testing. He has supported software product design, integrity, integration, reliability, measurement, verification, validation, and testing on various projects and software domains (environments). He has an M.S. degree in Computer Science with specialization in Software Engineering and Testing from Colorado State University and a B.S. Degree in Math with specialization in Civil Engineering and Software from Metropolitan State College of Denver, Colorado. Jon has worked in business analysis, systems, and software engineering, specializing in testing, verification and validation. Projects he has supported include the domains of embedded, mobile devices, IoT, PC/IT systems, and test lab and tool development. Currently, Jon works as a consultant for Grand Software Testing, LLC.Jon has taught hundreds of classes and tutorials in software engineering, systems engineering, and testing throughout the industry and universities. He has published numerous articles on software reliability, testing, test tools, formal methods, mobile, and embedded systems. He is the author of the book Software Test Attacks to Break Mobile and Embedded Devices and contributor to books on Agile testing and test automation. Jon makes presentations regularly at industry working groups and conferences. Jon most recently has been working on: combinatorial testing, test automation, handheld-mobile devices, IoT security testing, and error taxonomies for IoT/embedded systems.