Justin Carroll is a former Marine, plank-owner in the elite Marine Special Operations Command (MARSOC) and has worked on a contractual basis with another government agency. After completing his last overseas deployment, Justin spent five years teaching digital security and identity management to hundreds of soldiers, sailors, and Marines of the United States Special Operations Command (USSOCOM) and was instrumental in the development of a highly technical surveillance program currently in use abroad by US Special Operations Forces. Justin resides in Nashville, TN and is the author of Your Ultimate Security Guide: Windows 7, and Your Ultimate Security Guide: iOS. He co-authored The Complete Privacy & Security Desk Reference and is the co-host of The Complete Privacy & Security Podcast.