From Nextgov.com: Private sector not adequately defending U.S. cyberspace, security expert warns

Companies own 85 percent of the critical infrastructure and haven't invested enough to protect against cyber attacks, an analyst told lawmakers.

For more than a decade, the United States has relied mainly on voluntary action by private companies to protect the nation's critical cyber infrastructure, but "it's not working," a cybersecurity expert told lawmakers.

Read the whole story in Nextgov.com.