CompTIA Security + Study Guide: Exam SY0 - 501 About the Author Emmett Dulaney is an Assistant Professor at Anderson University. He has written several certification books on Windows, Security, IT project management and UNIX and was co-author of two of Sybex's leading certification titles: CompTIA Security+ Study Guide and CompTIA A+ Complete Study Guide. Chuck Easttom is CEO and Chief Trainer for CEC-Security, which specializes in IT security training and CISP and Security+ exam preparation. He has over 18 years in the IT industry, over 10 years teaching/training. He has authored 15 published books, including IT security.