Just don't fucking hack WoW period. I've seen someone hacking in front of me, they were banned forever. They had mommy buy them a new account an everything.
Which reminds me of a story about this newb who had a level 18 paladin (and I was like level 15 at the time on my paladin) he decided to duel me and lost, time and time again. He was never able to beat me, so he decided to say he beat me in duels and kicked my ass. Later that month he had his mother BUY him a level 70. Isn't that just hilarious? His mother paid like $300 for a fucking level 70 that wasn't even geared. What's even more hilarious is that once he hit 80, I was like level 70 (had to quit WoW) and I still beat his fucking ass on my rogue. Don't mess with someone from a PvP realm