HackerOne

As teenagers in the Netherlands, Jobert Abma and Michiel Prins hacked into the high school TV station. When they were in college, they told an education software company that its platform leaked grades and personal data. In 2012, Alex Rice, then Facebook’s head of product security, challenged them to find a vulnerability. They did, scored a contract with Facebook, and started hacking into Twitter, Spotify, and Uber to win work from them, too. Along with Merijn Terheggen and Rice, they started HackerOne in 2012, to run “bug bounty” programs--which reward hackers for finding security flaws--for Starbucks, GM, Uber, the U.S. Department of Defense, and about 1,000 other organizations. Such customers pay subscriptions, costing from the low four figures to tens of thousands per year. --Will Yakowicz