@ at @
I'm a systems security and architecture specialist, working on core security for Apple. (They invented the iPhone, have you heard of it?) Before that I was on leave from Harvard University, working as director of security architecture at One Laptop per Child, an education non-profit that aimed to produce a $100 laptop for children in the developing world. Prior to that, I worked on infrastructure and security for digital healthcare and co-authored Prentice Hall's best-selling Official Ubuntu Linux Book. Described by Wired magazine as a "security guru", in 2007 the MIT Technology Review named me one of the world's top innovators under the age of 35 for my work on the OLPC security platform, Bitfrost. eWEEK magazine editors subsequently declared me one of the top three most influential people in modern computer security, and along with editors of CIO Insight and Baseline magazines, named me one of the top 100 most influential people in all of modern IT.