Is All The Talk About Cyberwarfare Just Hype?

Director of National Intelligence James Clapper says the danger of a devastating cyberattack is the No. 1 threat facing the U.S. He made the assessment Tuesday on Capitol Hill before the Senate Intelligence Committee hearing on worldwide threats.
Susan Walsh/AP Director of National Intelligence James Clapper says the danger of a devastating cyberattack is the No. 1 threat facing the U.S. He made the assessment Tuesday on Capitol Hill before the Senate Intelligence Committee hearing on worldwide threats.Susan Walsh/AP
U.S. government pronouncements about the danger of a major cyberattack can be confusing. The director of national intelligence, James Clapper, and the head of the U.S. military's Cyber Command, Army Gen. Keith Alexander, delivered mixed messages this week while testifying on Capitol Hill.
Clapper told the Senate Intelligence Committee that the prospect of a computer attack on the nation's critical infrastructure is now the top security threat facing the country, surpassing terrorism.
"It's hard to overestimate its significance," Clapper said.
In a separate appearance before the Senate Armed Services Committee, Alexander issued a similar warning.
"All our systems today — our power systems, our water systems, our governments, our industry — depend on computers, depend on computerized switches, depend on these networks," Alexander said. "All are at risk. If an adversary were to get in, they could essentially destroy those components."
Asked by Republican Sen. Lindsey Graham whether such an intrusion would cause as much or more damage than the attacks of Sept. 11, 2001, Alexander answered, "That's correct. I think it would."
The Clapper and Alexander testimonies, however, were worded carefully. Clapper, in an assessment representing the views of the entire U.S. intelligence community, characterized the chance of a major cyberattack against U.S. infrastructure in the next two years as "remote."
"The level of technical expertise and operational sophistication required for such an attack will be out of reach for most actors during this time frame," the assessment stated. "Advanced cyber actors — such as Russia and China — are unlikely to launch such a devastating attack against the United States outside of a military conflict or crisis that they believe threatens their vital interests."
Alexander was similarly reassuring in his written testimony.