Sean F. Morrissey has had more than 20 years of Mac and PC experience. He�was formerly a trainer for the U.S. State Department, a private e-discovery consultant, and provided support for companies like Dell and Hewlett Packard. Sean's background is in law enforcement in Maryland and, as a U.S. Army officer, he was assigned to test and evaluate state-of-the-art computer management and weapon systems. Sean is also a graduate of Creighton University in Omaha, Nebraska, and has authored a book on Mac forensics. He previously worked for CSC, where he developed and delivered computer forensic training to federal agencies. He has now returned to the U.S.�State Department as a mobile forensic analyst. Sean was also the lead author of Mac OS X iPod and iPhone Forensic Analysis DVD Toolkit.