US Faces "Significant" Threat from Cyber Espionage

John Brennan, Deputy National Security Adviser for Homeland Security and Counterterrorism, stated during a television interview that the United States faced a "serious and significant" threat from cyberspace:

"We're looking at these issues from the standpoint of espionage, from governments, from different individuals, whether they be hackers or terrorist organizations," Brennan said.

"National security is something that is at risk. That's why what we're trying to do is to ensure that our networks, our government networks, our private sector networks have the ability to withstand these attempts to hack in."

US faces 'serious' cyberspace threats: advisor