He's served as vice chair of the President's Critical Infrastructure Protection Board and as chief security strategist for the US CERT Partners Program under the Department of Homeland Security.

FORBES: Magazine Article

In Aliabad, a town in the south of the province, a group of about a hundred men called the Critical Infrastructure Protection force had set up a string of checkpoints.

NEWYORKER: After America

The assets and systems we depend on are essential to our way of life, and during Critical Infrastructure Protection and Resilience Month, we maintain our commitment to keeping our critical infrastructure and our communities safe and resilient.

WHITEHOUSE: The White House

NOW, THEREFORE, I, BARACK OBAMA, President of the United States of America, by virtue of the authority vested in me by the Constitution and the laws of the United States, do hereby proclaim December 2012 as Critical Infrastructure Protection and Resilience Month.

WHITEHOUSE: The White House

But to extend that protection to the nation's critical infrastructure--including banks, telecommunications and transportation--it needs the cooperation of the private sector.

FORBES: Bush's Cyber Secrets Dilemma