As President and Chief Executive Officer, Mr. Book provides leadership and direction to the entire organization. Prior to joining JSSI, Mr. Book served as Vice President of Mobility for Juniper Networks, directing its mobile security business unit. His role at Juniper began in 2010, in connection with their acquisition of SMobile Systems, where he had served as President and Chief Executive Officer. Mr. Book began his career at AT&T where he held various management positions. Mr. Book is a graduate of the University of Delaware, class of 1999.