"Hey all - while we have no definitive update on this yet (that'll come tomorrow, I hope, after our investigation concludes) I did want to point out one important thing.
There have been some suggestions of characters running around on servers in the 30-40 range today. We have the metrics here, and the highest level character as of 30 minutes ago is considerably lower level than that.
Again, we take this seriously, and we're looking to see if this is an exploit that we need to rectify - but don't let rumor and speculation run too rampant."
keep up with the dev tracker, there is a lot of great info in there.