DARPA launches its latest challenge program next week. It’s called the Cyber Grand Challenge, and its goal is to completely transform the way computer network defense works. Over the course of two years, teams will try to build automated systems that can find and fix cybersecurity vulnerabilities so quickly that even the best human hackers in the world can’t defeat them. Michael Walker is a former hacker who’s now the program manager for DARPA’s latest challenge. He talked about it with Federal News Radio’s Jared Serbu during a demonstration day at the Pentagon last week.