Dan Schulman is the CEO of PayPal. But his career began at AT&T, where he was paid an annual salary of about $14,000 a year. He rose through the ranks to run its core consumer business, then went on to run three public companies including Priceline, American Express, and Virgin Mobile. Schulman told Business Insider's Editor-in-Chief Alyson Shontell how he built his career, and how practicing Krav Maga martial arts helped him find success on this podcast interview for "Success! How I Did It."