Joe Sullivan was a rock star in the information security world. One of the first federal prosecutors to work on cybercrime cases in the late 1990s, he jumped into the corporate security world in 2002, eventually taking on high-profile roles as chief of security at Facebook and Uber.When the security community made its annual summer pilgrimage to Las Vegas for two conferences, Mr. Sullivan was an easily recognizable figure: tall with shaggy hair, wearing sneakers and a hoodie.“Everyone knew him; I was in awe, frankly,” said Renee Guttmann, who was the chief information security officer for Coca-Cola and Campbell Soup. “He was an industry leader.”So it came as a shock to many in the community when Mr. Sullivan was fired by Uber in 2017, accused of mishandling …
