Chuck Easttom is a computer scientist, author, and inventor. He has authored 25 other books on programming, Web development, security, and Linux. He has also authored dozens of research papers on a wide range of computer science and cyber security topics. He is an inventor with 13 computer science patents. Chuck holds more than 40 different industry certifications. He also is a frequent presenter/speaker at computer and cyber security conferences such as Defcon, ISC2 Security Congress, Secure World, IEEE workshops, and more.