I don't see why you won't tell us which maps are included in Zone 4.
If a zone is down,it's good to know which maps to stay away from.
Or did you mean to log out in general if only one zone is down?
Most players grind leveling,wouldn't notice if a zone crashed,unless,in my case I happened to be in Zone 4,
vending in Prontera at the time.
I guess if hackers know which maps are in which zone,they could...i don't know.
But then even IRO has been victimized by hackers before,so it could easily happen to a Private Server.
I remember a hacker so skilled,he quite literally broke the game. It was like April 2007.
People could teleport and land anywhere.
Monsters dropped cards 100% chance,and gave 10x more xp and spawned in towns like Wild Roses.
They had to do a 12 hour maintenance and a roll back,just to fix everything.
This happened on IRO. I still have a screen shot of my priest standing in Alberta's ocean.