Nico Sell is a professional artist, athlete and entrepreneur based in California. She is cofounder and CEO of r00tz and Wickr. r00tz is a nonprofit dedicated to teaching kids how to love white-hat hacking. Wickr is a free messaging app enabling anyone to send top-secret messages that self-destruct. Nico also helps organize DEF CON, the largest hacker gathering in the world. She has helped start more than twenty successful security organizations as a venture catalyst. Nico earned her degree in government from Dartmouth College while focusing on nuclear strategy.