This guy won't stop leaving me alone. Every day he hacks me and when I have no research to hack, he attacks me dead. I've been playing for three days, and my log is filled with him hacking me.

Is there a way to stop receiving abuse by one player?

what level are you both?
you could try and get into a legion with someone higher than your attacker so they can return the favour.
other than that you can up your cloak or upyour guns so you can start hitting him back

He's one rank higher than I, attacks me 2-4 times a day, and after checking his amount of battles and hacks, I have a feeling I should feel better that I do leave the computer. =s

I joined a legion, but everyone's fairly new, since I am new myself. I'll keep raising my cloak and guns, as you suggested. Thank you very much. =)

Right not he is finding you through the news feed. If you don't retaliate, then you should leave his news feed in 2 days.