Bruce "Grymoire" Barnett has been a scientist at a large Fortune 50 company for 25 years, with a focus on security and advanced algorithms. Some of the tools, developed for military contractors, dealt with attack trees and vulnerability chains (NOOSE – Networked Object-Oriented Security Examiner). Other projects include data provenance, steganography, key management algorithms for sensor networks, and advanced network analysis. He has also written several tutorials on Unix shell scripting, and Google ranks his Sed tutoral as #1. Bruce has been a part-time professional magician for 35 years, and belongs to societies such as the International Brotherhood of Magicians, and the Society of American Magicians. He currently runs several forums exclusively for magicians, such as the Electronic Grymoire, and the Shadow Network. Twitter: @grymoire Facebook: http://www.facebook.com/home.php#!/profile.php?id=1593769945&v=info