Competitors 'CANVAS' networks in hacking challenge
U.S. Air Force Academy Cadet 1st Class Bryan Hanes and Will Mitchell, a local student, participate in the Computer and Network Vulnerability Assessment Scenario April 2, 2010 at the Academy, Colo. Scenarios challenged students to hunt down and identify weaknesses in system design and implementation for a fictional social networking Web site. (U.S. Air Force photo/Bill Evans)