Yes as Ebenezzer said space combat has not been implemented but this also applies for ground vehicles with weapons, so when your buying a ship you don't have to factor weapons in to the equation at the moment.
You have to admit it is really nice to be able to fly in to enemy territory "guarded" by heavily armed capital ships and space stations and just go right through without them being able to do anything about it. But on the revers side it is annoying to have ships from enemy factions cluttering up your star system.
Odds are for people who want to minimize there own risk, SO NEVER TELL ME THE ODDS!!!