Wikipedia: http://en.wikipedia.org/wiki/Dan_Geer

Interview on the Silver Bullet Podcast: http://www.cigital.com/silver-bullet/show-002/
Interview on Paul's Security Weekly Podcast: http://wiki.securityweekly.com/wiki/index.php/Episode282#Interview:_Dan_Geer

Inducted into the (US) National Cyber Security Hall of Fame 2016 http://www.cybersecurityhalloffame.com/

From the Cyber Security Hall of Fame page:

"Chief Information Security Officer at In-Q-Tel"

"Dan Geer has ten years in clinical and research medical computing followed by five years running MIT’s Project Athena. After a small stint in the Research Division of the then Digital Equipment Corporation, he became involved in a series of start-up endeavors, in all cases either as a founder outright or an officer of the company. 

"Mr. Geer now finds himself in government service as the CISO at In-Q-Tel, the investment arm of the U.S. Intelligence community. He is a frequent author, six times entrepreneur, and has spoken five times before Congress on cybersecurity initiatives."