Before revision: The Cyber Storm exercise was a simulated exercise overseen by the Department of Homeland Security that took place February 6 through February 10, 2006 with the purpose of testing the nation's defenses against digital espionage.Fact Sheet: Cyber Storm Exercise (Department of Homeland Security).
After revision: The Cyber Storm exercise is a biennial simulated exercise overseen by the Department of Homeland Security that took place February 6 through February 10, 2006 with the purpose of testing the nation's defenses against digital espionage.Fact Sheet: Cyber Storm Exercise (Department of Homeland Security).