KTOS 2012.1230 EX-23-1

We have issued our reports dated March 12, 2013, with respect to the consolidated financial statements and internal control over financial reporting included in the Annual Report of Kratos Defense & Security Solutions, Inc. on Form 10-K for the year ended December 30, 2012. We hereby consent to the incorporation by reference of said reports in the Registration Statements of Kratos Defense & Security Solutions, Inc. on Forms S-3 (File No. 333-161340, effective August 21, 2009, File No. 333-172103, effective February 8, 2011 and File No. 333-173099, effective April 15, 2011), on Forms S-4 (File No. 333-167840, effective July 12, 2010, File No. 333-174745, effective June 20, 2011, File No. 333-174760, effective June 28, 2011 and File No. 333-177493, effective November 1, 2011) and on Forms S-8 (File No. 333-90455, effective November 5, 1999, File No. 333-54818, effective February 1, 2001, File No. 333-71702, effective October 17, 2001, File No. 333-91852, effective July 2, 2002, File No. 333-116903, effective June 28, 2004, File No. 333-124957, effective May 16, 2005, File No. 333-127060, effective August 1, 2005, File No. 333-155317, effective November 12, 2008, File No. 333-157826, effective March 10, 2009, File No. 333-167839, effective June 28, 2010, File No. 333-171257, effective December 17, 2010, File No. 333-173383, effective April 8, 2011 and File No. 333-177494, effective October 25, 2011, File No. 333-333-179977, effective March 8, 2012, and File No. 333-182910, effective July 27, 2012).