I was inter­est­ed in com­put­er secu­ri­ty when I first showed up at MIT as an under­grad­u­ate. I just found it an intel­lec­tu­al­ly inter­est­ing field of study. But indeed because we have the stu­dents that we have I have an inter­est­ing per­spec­tive on it. In fact at MIT I like to say we have only two kinds of com­put­er secu­ri­ty. We have very good com­put­er secu­ri­ty, and we have…none at all. Because noth­ing in between is of any consequence.