Again - did somebody changed your worker passwords? Or it was just a temporary error which you saw in miner?
I don't think somebody entered database.
2011-06-20 02:12:24: Listener for "slush": 20/06/2011 02:12:24, Error while loading credentials from database for blablabla.blablabla
blablabla.blablabla is just for example

Is it possible that those whom attacked mtgox just succesfully entered and in the pool's database?
Cause I'm using random and big passwords for sites' registrations ...
