Marten Mickos is CEO of HackerOne, a cybersecurity firm with a unique business model. Rather than building and selling security products, HackerOne runs a marketplace that pays out "bug bounties" to hackers all over the world for scouting out kinks in companies' software. The model has proven very effective, with a rapidly growing customer base that includes Uber, General Motors, Dropbox, Twitter, GitHub and the Pentagon. Mickos sat down with the Business Times to discuss company goals, the...