People being hacked since the last Server Check.

Around 3 months.
Ever since it happened, I've been changing my main account's password once a week.

I admit to not changing my password as often as I probably should, but it was within the past two or three months at least.
In any case though, no one else knew my login id, let alone my password or PIN.

Hm because so far it seems like everyone being hacked hasn't changed their passwords often. Thus back to my theory, people with passwords who did not change them at all, back when the breach happened, are the ones getting hacked. That's not to say you can't just get hacked because it happens. A bout 3 months ago before I changed my password someone was trying to get into my e-mail. I'm happy gmail enabled the double log in thing though. Anyway so far the only ones I see getting hacked around here, my bl, and my guild are the ones who've been gone for a while and haven't changed their passwords. That's just my theory from the evidence here.