Based on a survey by Lumension in a study titled "Federal Cyber Security Outlook for 2010 Survey", almost three quarters of the government IT administrators polled in the survey feel that the US is at high risk for a cyber attack by a foreign country in the next year.
Specifically, the majority of IT administrators and decision makers were worried about the increasing sophistication of cyberattacks. The next highest concern on the list was over negligent or purposely malicious employees or insiders that directly or indirectly cause the exploitation of a system or network. These risks are heightened by a general lack of sufficient resources and coordination--for example, 42 percent said they don't have the budget or staff to properly address security risks. 59 percent of those polled said their agency or government department say they were hit by viruses or malware in the past year. 50 percent reported the loss of sensitive or confidencial information or data due to a negligent employee or insider.
Source: https://www.lumension.com/Federal-Cyber-Security-Outlook-for-2010.aspx