Hi all. Well I guess I'm a bonehead for not taking the proper steps to secure my mac. I'm a trusting soul and didn't think that it could happen to me. Turns out that my fire wall was not even turned on. Now, I need to know what steps to take to protect myself. I'm not opposed to sitting down with an expert and paying for serious assistance. In the mean time, I'll look for help here. 1) My fire wall now says "Only essential services". Does that mean that it is ON now? 2) I know who did it,,, but how? Did he sit in front of my house and gain access the first time that way? I mean, HOW in the world can he be at his house and say "I want to get so and so, and then do it"? 3) I know that my system puts off a 'number'. I believe that it is the ISP. What gives off the number, the router or my computer? 4) By changing my router (and moving to another state) would that keep my dear friend from being able to pick my out of a crowd and targeting my specific machine? 5) What steps do I need to lock him out? 6) What can I turn off at night (when he is up to no good) to prevent him from gaining access? Computer,,, Router,,, or the cable connection? 7)NOW the big question. How do I prove to a judge that he was in my computer. Does a hacker leave a trail? This is a federal offence and he is attempting to commit extortion. This is kind of a big deal and I want to press charges. I'm at the point where I don't even know where to turn. I know that there are people in law enforcement that track down and prosecute these types of crimes, but I'm guessing that I'm not a big deal to them and he will go unpunished. I could really use some help. Thanks in advance!