The Obama administration warned American businesses on Monday about an unusually potent computer virus that infected Iran's computers and the operations of its oil industry. The Homeland Security Department says, so far, no Flame infections have been found inside the U.S.

Meanwhile, Iran and other countries hold the U.S. responsible for secretly creating and unleashing cyber attacks against foreign countries. It's a hot topic and experts consider American infrastructure to be extremely vulnerable.

Washington Post Reporter Robert O'Harrow Jr. discussed this issue and his continuing series on the topic of cyber security with Capital Insider.