Who is Marcus Holloway associated with as the hacker collective in Watch Dogs 2?

DedSec

Which centaur became known as wise advisor and teacher for heroes? Who was responsible for the Reformation by nailing his 95 Theses to a church door? What's the first gift Santa Claus gives in the 1964 special "Rudolph the Red-Nosed Reindeer"? What type of cloud is typically associated with thunderstorms? What ideological conflict dominated American foreign policy from roughly 1947 to 1991?