That makes absolutely no sense. First of all, GM's are customer service agents, that is all. They are not part of the IT or Programming sectors. Secondly, several people were able to log on, just some people were not.
Lastly, common issues with computers amongst the general population as far as spyware and a virus or even 4 of them are concerned...chances are really good that there are another 50 thousand people who have the same 4 virus that you have that never touched FFXI.
Really, the problem is fixed. There is not a conspiracy, no one is attempting to harm you while you play a benign game. Go camp an NM or something calming for a bit.