The Procyon Insurrection (or "The Insurrection") was a faction that rose up against the Galactic Authority, led by a man simply known as "The General". They believed that the Galactic Authority was corrupt and sought to reveal this to the people of colonized space.
The Galactic Authority sent Kal Varrik undercover as "Griffin Jones" to become a member of the Insurrection. It was during this assignment that he unwittingly helped the terrorist organization destroy the Hyadum-12 space station -- killing ten thousand people.
The Procyon Insurrection is derived from Dark Matter.