Systems which are controlled by Nomads/Wild, Guard or Security systems are really not meant for easy travel, and unlike the old 1.1 version of the game you are not just being attacked by Fighters who are of an equivalent strength or slightly higher level, you will come against heavier and bigger ships and more of them. and the lack of a safe haven in those systems is an important issue to remember. Guard and security systems can be accessed by doing missions for their main npc clan faction till you go green with them then go into and out of the guard/sec systems and then do more missions till you get green enough with the guard/sec faction to be able to go into them
