http://www.facebook.com/MtGox/posts/453409538076792parts that concern me: What can be done? Believe it or not, there is pretty much nothing that can be done. Large companies are frequently victims of these kinds of attacks. Even though we are using one of the best companies to help us fight against these DDoS attacks, we are still being affected.
but then they go on to say this: There are a few things that we can implement to help fight the attacks, such as disconnecting the trade engine backend from the Internet. By separating the data center from the Mt.Gox website, we will continue to be able to trade.
also this: We are working on it by creating a new trade engine that will solve many problems, but it’s not a magic bullet