Space pirates!

I should note that this NRP does take into account stuff like the speed of light and how easy it is to be detected in space- 

It should be a given every faction tracks the movements and activities of everyone else at least in regards to their spacecraft and their movements between sectors in the solar system.  Identifying what everyone is however may be a bit harder.  You never know what those ships are carrying unless you crack one open be it digitally (intercepting comms and transferring your mind into a spaceship's mainframe to take control for instance.  Yes that is possible, install good firewalls.) or physically.